 Yes, the first question is in front of you. I'm going to start the quiz. I think all of you are ready now The first question is this an Aluminum atom has a nucleon number of 27 and a proton number of 13. How many neutrons does this aluminum atom contain? not very tough question starting with basics How many nucleon numbers? Nucleon number is 27. You have 11 more seconds. Surya, you are not allowed to ask anything between this. Okay, one minute students. If anyone is facing any issue in this, as someone said that Has it happened to everybody? That question didn't pop up until 20 seconds other than Ananya and Anike. Okay, fine. Then I'm not changing network. Okay, earlier I thought I should change the network. Please let me know if any issues are there. Okay, fine. So answer is nucleon number is neutron number plus proton number. Would I move to next question? Yes or no? This is the question. Any doubt? Okay, fine. Next question Oh, Mahabal. Good Mahabal. Fine. Next question. Please read the question carefully and see the timings also. An atom of element Q contains 19 electrons, 19 protons and 20 neutrons. What is Q? 19 electrons, 19 protons and 20 neutrons. What is Q? Okay, Ananya, I think it's happening with you. Fine. Answer for this question is B. Answer is B because potassium is the atom. Proton numbers are in potassium. Proton numbers are 19. Electrons are also 19. Since atom is neutral and 20 are the number of neutrons. Any doubt? Any doubt? Would I move to next one? Yes? Anyone has any problem? Please let me know now only. No problem? No, don't use periodic table. Koriya, please don't use periodic table. None of the question is like that. You are supposed to know all those things which I am going to ask you questions. So don't use periodic table at all. Clear? Fine. Next question. So question is the table shows the atomic structure of 4 atoms. Which atom is not a matter? Electrons are given, neutrons are given and protons are given. Oh, there is timing is very less here. Sorry students, timing is very less. Okay, this is easy. 36 students have answered it right. Okay, Anike, why you didn't have question? Okay fine, I will tell you how to solve this. This is the question. The table shows the atomic number of 4 atoms. Which atom is not a matter? Not a matter. If you see, if you see, okay. So if you see there are protons 18, 19, 19, 20. By simply looking at this you can predict that 18 protons means argon. Argon. 19 means potassium. 19 means potassium. 20 means calcium. 20 is not a matter. Argon. Answer is A. Is it clear? Oh, students, one minute. I am stop sharing my screen for one minute. Just in case if anyone face any issue for that I will change the network. Just give me one second. Am I audible? Yes, fine. So this is the result. Moving to the next question. We will see the leaderboard. We have seen in a single line in chemistry. So I want to see some single line. Okay. Obviously I am expecting a single line with correct answers. Which statement about atom is correct? Atom contains protons. You have one minute to solve. Atom contains protons and electrons in the nucleus. Neutrons are negatively charged. Protons are positively charged. Nucleons number is the number of neutrons. Okay, we will see. What is the result? Aniket. Aniket, now this time is it fine? Have you faced any issue? Okay, fine. Everyone has voted. And the answer for this is C. And still I have not got. Which statement about atom is correct? Correct means atom contains proton and electron in the nucleus. Not electron. Proton in the nucleus. Neutrons are negatively charged. No neutrons. Protons are positively charged. Nucleons number is the number of neutrons. No. Neutrons plus protons. Is equals to number of nucleons. Is it clear to all of you? And it out? Fine. Moving. I am going to the next question now. I think all of you are ready. Yes, fine. Next question. Okay, who is leading? Oh, this time. Fine. Aniket was the fastest. Fine. Next question. Okay, here is the question. Which diagram correctly shows the ion present in the compound potassium fluoride? Potassium fluoride ion one is the K and one is F. So which is the correct representation of potassium fluoride? Potassium fluoride. Which is the correct representation of potassium fluoride? Okay. In A, K plus is given and F is given in B, K and F minus is given. In C, K plus and F is given. In B, in the D option K and F plus is given. And in B it is K plus, K and F minus. Okay, I understand that. So keep this question. Okay, fine. Just see how to do this. Okay, fine. The time is up and the answers answer most of you have given the right answer and that is C. Very good students. How to do this question? See potassium given is K plus and this is dust of chlorine. One minute. One minute. Now, can you see my screen? All set. Okay, it got disconnected. Fine. So now, so here is the question. So potassium is 2, 8, 8, 1 and potassium plus is 2, 8, 8. Now, if you talk about chlorine 2, 8, Ok, now chlorine is 2, what is the configuration of chlorine? Tell me students what is the configuration of chlorine? 2, 7 but you have F minus 2, 8 2, 8 is fluoride ion. Now this is a KF Now you think where you have the K plus is 2, 8, 8 and F minus is 2, 8 that is only C option 2, 8, 8 with K plus this is K plus and 2, 8 with F minus with F minus Yes The answer for fifth is C is the answer Is it clear to all of you? Yes Could I move to next one? Okay So this is the question number. Moving to the next one We will see the result Yeah, that's why I read F plus F minus and all Okay, fine Next question What do the nuclei of 1H1 hydrogen atom contain? Electron, neutron Electron, proton, neutron only proton only So students these are the questions which you should attempt very fast very good Let us see how many whether I am going to get the single line or not this time I heard that you people got a single line Okay Fine Now the answer for this question is Oh my god What is this? This is absolutely not acceptable Why it is like this more than the people who have okay It's almost 50% Fine, what is the question? 1H1 new P i of hydrogen atom contains It contains only proton Reproton, they have written nuclei So nuclei only contain proton Electron and proton is there in the hydrogen atom That's why I told you be very cautious while giving the test Is it clear to all of you Yes or no They have given nuclei of 1H1 Hope you got your mistake and you won't make these type of mistake again Because these are just game changer So this is the result Fine, moving to the next question Would I move to the next? Okay We will see who is leading now Okay, good Aniket has maintained his position and Harshita arenaat Good Harshita So read question carefully Which statement about the neutron is not correct? It can be present in different numbers in atom of same element It has a node charge It is always found in nucleus of an atom It means much less than a proton So again it is a very easy question But I know that you people will definitely make mistake Because this has become a trend Every time whenever I expected that this time I will get a single line You have never shown a single line to me in chemistry So now I have stopped expecting that also Okay, I think you got one single line in physics or map somewhere you got a single line Yes Okay, fine So answer for this question is D Okay, many of you went wrong in this also It is very easy question which statement about neutron is not correct Not correct means all these are correct A, B, C options all are correct It present in different number of atoms in same element Yes, there is possibility Like what are those What we call those things Where the neutron number are different What we call those Those are called as isotopes Isotopes I want to tell you one thing here There are three things Isotopes Isotones Isobars What is common in isotopes What is what is same What remains same in isotopes No, no, no isomers What is remain same in isotopes Proton same Proton same Mass different Mass different means Neutron number are different Proton number are same But neutrons are different What is there in isotone I will tell you how to remember Isotope Purse P means proton same Isotone No Neutron same Here you have neutron same What is there in isobars Isobars Mass same How I remember I remember it with the Hindi word Bhaar In Hindi Bhaar means One minute students, one minute I am again connecting back One minute So I was telling about the isotones Isobar Isobar is something which has the same weight as one of your friend pointed out sir what is isoelectronic Can anyone tell me what is isoelectronic What is isoelectronic Isoelectronic Yes Same number of electrons are isoelectronic Is it clear There was some network issue but now I think it got Okay there was some network issue But now I think it got resolved So I am again going to the slide Okay so this is a is it clear So what is the isobar What is isoelectronic Isoelectronic means Isoelectronic means Number of electrons same Is it clear Same electron So these are the four things Isotone, isotope, isobar Isoelectronic Can you give me any example of Isoelectronic species Can you give me any example of isoelectronic species Isoelectronic past Isoelectronic Okay one of your friend has returned What about others Very good K plus and argon K plus and argon are isoelectronic Can you give me any example of isobar Isobar Can you give me any example of isobar Very good Calcium and argon Both have 20 Both have mass 40 Calcium also and argon also 40 amu Can you give me any example of isotone Can you give me any example of isotone Can you give me any example of isotone Isotope I am not going to ask Because all of you know that Isotone Think think Isotone means Neutron same Neutron same in which case Okay glorian 37 no that's fine But can you tell me the Normal example which you see that as Isotone Okay just check whether phosphorus And sulphur are isotone or not Please check Please check phosphorus and sulphur are Isotone or not Please check whether these are Isotone or not Phosphorus has atomic number 15 Proton is 15 Neutron is actually 16 here In case of sulphur Proton 16 Neutron is also 16 You know that's why Phosphorus and sulphur are isotone Is it clear to all of you Is it clear fine Okay I am moving to the next question I am erasing all this Yes mass number To be remember exact atomic Mass you need to remember Till atomic number 20 I think I told you some trick to remember also Lena or baby Have I told you the trick Lena or baby thing Have I told Lena or baby Lena or baby Yes Only in those cases you can't double it Otherwise you can double it everywhere Okay Lena or baby went to Allah Only in those cases you can't double Hope you understood this Who is Lena baby I think you were not there in last Centrum Okay fine Have I told you centrum are or not Have I told this in last centrum are Yes fine Please go through the recording Please go through the recording Aditya Fine next question Next question So Which element has atomic structure Shown in bigger Isn't it bigger now Why you have to switch between tabs Anyways I am switching it Okay don't see in many meter That's why I am sharing my screen my dear Okay I won't take much time To switch in that that's why I keep it ready Because the questions which I am sharing Is like this only Okay fine I think it times up Oh my god do you want to see the result See Most of you have made mistake in this question So you can imagine that How casually you are solving the question Or just To finish the question you are doing like this Okay now see They have asked like Which element has atomic structure Shown They have shown 16 neutron But if you count the electron Two to four to six To eight to ten One minute Two Two and eight Two and eight ten and Five fifteen electron Fifteen electron sixteen Neutron What is this Electron sixteen neutron which element Was for us Don't go with the neutron Number Neutron is there in sulphur also Sixteen neutron are there in sulphur In last question we discussed Understood I think you got the beauty of the question Yes So don't click it Fast Just read the question carefully Fine Next question So you can see that When most of you have made mistake in this question Just to finish the question Very fast So if you want to see Who all have made the mistake You can see their name also See Harsita Anirudha and all Now Harsita will I think she will lose her position Okay now Harsita is On the eighth or ninth position I don't know Harsita be careful The relative atomic mass of chlorine Is thirty five point five When calculating Relative atomic mass Which particle is the mass of chlorine atom Compared to Okay students Question seems very easy But be very careful Yes Time sir Fast I want to see the result Okay this time it's good to graph So answer is C only Where they have asked the relative atomic mass So in relative atomic mass In case of relative atomic mass This is the definition that Relative atomic mass Is always With respect to C12 Earlier it was taken as hydrogen atom But later they changed To C12 and still Now we are following Till date we are following this Carbon tool as the reference only Yes before it was oxygen also Right Ananya you are right It was oxygen also it was hydrogen also But Later we came to Carbon Is it clear Would I move to the next question Yes or no Fine So next question is Yes Later they accepted carbon as Carbon was universally accepted Okay Fine so moving to the next question So many of your friends Are not in the list also now So students please Be careful while answering the questions So now Next question Atom contains electron, neutron and proton What is the definition of nucleon number What is the definition Of nucleon number The number of neutron in nucleus Of an atom The number of proton in the nucleus of an atom The total number of neutron and proton In the nucleus of an atom The total number of particles in an atom This time I don't want A single wrong answer Because two three times I have already Told you in today's Class itself So this time I am expecting Right answer only Let me know Okay I think it Times up yes Okay this time You have answered it right That's good but still there are many Who have not answered it right Nucleon numbers Atom contains electron, neutron and proton What is the definition of nucleon number Is nothing but proton Plus neutron Is called as a nucleon That is nothing But also called as mass number Mass number Is nothing but nucleon number Okay Fine add it out Add it out No doubts fine Next question We will see the linear board Okay Very good students Satyam is leading Satyam is coming in the second position Oh Aniket has Maintained his position Good Aniket Next question The diagram shows the atomic structure Of an element X What is X No SPTF is not there for NPSC The diagram shows Okay the diagram shows the atomic Structure Of an element X So What is X Aluminium, beryllium, boron or chlorine I think it's visible Why you people are not seeing my screen You know these questions I can't See which I am from the Let's say I am selecting questions from some places So this question is a completely Framed one And Otherwise I could give the questions Structures are not given So to make these type of questions That's why I am sharing my screen Results came sir you can crop it and groom I guess crop it and groom Okay so now This question First I want to see the results You guys answered a good At least first time I have seen a zero thing In any option That's a new problem So here they have given the proton, neutron And everything So number of protons given are If you see the atom One proton, two protons, three protons Four protons And one, two, three, four Four neutrons Four protons, four neutrons It's very clear that hydrogen And helium, lithium, beryllium High Beryllium is the answer Any doubt, any doubt No doubt, fine Next question Please see my screen for the questions Please refer my screen Okay I'll make sure that you won't lose a single second Okay Now Very good Aniket, very good Okay there is some error in mentee Just There is some error in mentee One minute I'll try to fix it Give me one minute Okay fine This is an expression Please read it and do it Which statement comparing the properties Of electron, neutron and proton are correct You might have very less time Wait, wait, wait, wait Okay time's up And the result is I'll show you the result Fine This result We'll see the reader Which Which statement comparing the electron, proton, neutron And proton are both heavier than electron That is correct One electron and neutron are charged Only electron and neutron are charged, it is wrong So answer is B This question Those who have done wrong, I don't know what happened with you Why you people have made mistake in this Question Does neutral charge count as charge Why What type of question is this Does neutral charge count as charge No, understood Neutral means no charge Any other doubt students Any other doubt I expected A single line in this question Any doubt do you have There aren't positive and negative Yes, no doubts Could I move to next one Yes, fine Next question We'll see the reader world Oh Aniket, you made mistake in this question I don't know why Okay, fine So now are you ready for our next question I'm going to show you the next question Be ready for that This is the question Please see my screen The atomic structure of four particles are shown Particles, electron, neutron And proton are given Which two particles are isotope It is not that tough question Very easy Why Surya, I don't know what happened Why you people are I don't know why you people Are not getting correct answer I am stuck at 15 Surya, please refresh it Please refresh it I think all Other than you all are able to see the questions And able to solve that I am stuck at 16 One minute I am stuck at 15 These two questions I have not Reached there Okay, rank Like rank, sorry Sorry students First we'll see the reader board Fine, again Why you people are making mistake in this At least before end of this quiz At least be clear about isotopes Isobards At least So this is the third or fourth question Related to isotope The atomic structure of four particles are shown Electron 8 Neutron 9 Proton 8 Okay, now which species is this Anyone Proton is 8 Neutron is 9, electron is 8 Fine, this is the one Let's say I can write this as nothing but Oxygen with atomic mass How to represent this atom How to represent anyone who can help me I can't write direct oxygen Because its mass is not 16 Its mass is 17 It is an isotope of normal oxygen It is an isotope of normal oxygen With atomic number 8 This is the one thing Okay, now if I talk about X Proton is 7 Means it is nitrogen With electron I am joining back Nitrogen is 16 Nitrogen mass is 16 Which we are getting This means that One minute It is an isotope of nitrogen Isotope of nitrogen Fine So Can you see my screen now Okay fine So isotope of nitrogen is there This is the isotope of nitrogen So nitrogen is 16 And atomic number is 7 What about this Atomic number 8 Means oxygen Atomic number 8 oxygen Neutron number 10 Total mass is 18 Neutron plus proton 18 Electron is 8 Fine, neutral oxygen Z is atomic number 9 Means 9 atomic number is chlorine Proton number is atomic number Chlorine is the atom How many neutron 10 Total mass is 10 plus 9 19 And electron is 9 So these are the atoms What is the answer which are isotopes Answer is W and Y is the answer V Now I want to ask you a very small question Very small question Can you write the configuration of O2 Minus Can you write configuration of O2 Proton, neutron and electron in this Configuration Proton, neutron and electron In O2 minus Fine You have written the electronic configuration Very good 2,8 is the electronic Configuration I hope you understood because 2 extra electrons Now tell me what is the proton Proton in O2 minus Okay, Surya you are wrong Surya you are wrong What is What is neutron You have not written neutron Neutron, electron 8 Very good, so proton is 8 only Total number of proton is 8 Yes Neutron is Neutron is Again 8 But electron is 10 Electron is 10 Is it clear to all of you Is it clear Next one Okay, electron is 10 because it has taken extra electron I am moving to next question You need to understand about the ions How ions How to find the proton, electron, neutron in ions Next question This is the result Satyam and Lakshya made mistake Even Anike, why students All the 3 talkers as of now have written wrong answer Fine So next question Next question is in front of you 2 atoms X and Y can be represented as shown Which statement is not correct Okay, fine X and Y are the atoms of different elements X and Y are the isotopes X and Y have different mass numbers X and Y have same number of electrons Ananya, why you Why you have written this in chat Ananya Ananya, okay fine So this is very Again a very easy question But new people will never complete my dream of having a single line And new people are making silly mistakes Again and again and again Okay, fine Question number 14 Answer is A Answer is A, fine They have asked you not correct If you see atomic number is 20 That is nothing but proton Proton is same Proton or atomic number both are same thing So or atomic number both are always same So atomic number is same means elements are of the same element But they have asked you that not correct X and Y are different element This is our answer X and Y are isotopes Yes it is isotope because mass number So because they have asked not correct we have crossed it X and Y are different mass numbers Yes this is correct but not our answer X and Y has same number of electrons Yes X and Y have same number of electrons But it is not our answer Any doubt Any doubt students No doubt, fine Please take your time and answer the question Almost 50% have made mistake So now Satyam has made a big mistake I guess Fine Any case is again in his position Very good any case Next question 2 atoms have the, please see my screen 2 atoms have the same relative atomic mass But different chemical properties Which row about the proton and neutron number of these atoms is correct Please read question carefully Not very tough question But I guess you can get the correct answer in this And you know This question could be game changer This question could be game changer Ok fine We will see what is the time Now see this is the result What I said this question could be game changer And this is the result which is in front of you Only 10 students have marked it right Fine See how it is a game changer They have given 2 atoms have the same relative atomic mass Mass is same But different chemical properties Ok Have same relative mass So which row about this So mass is same means it is isobars Isobars Isobars Now If you see If isobars are there That is one thing is very clear That atomic number is different If isobars are there atomic number is different If atomic number is different means Proton numbers are different Proton number are different If proton number are different So your mass is Nothing but n plus p This is same This is different For 2 atoms Don't you think n should be different For 2 atoms It must be different Like Like I took the example of phosphorous And sulfur In case of phosphorous and sulfur Phosphorous has proton Number 15 Neutron number 16 Sorry that is isotone Take isobar example that is calcium And argon Argon proton number is 18 Neutron number is Neutron number is 22 Calcium Proton number is 20 Neutron number is also 20 Then only they have the mass Equals to 40 Then only they are called as isobars Surya Surya that is a Quite Good Okay Is it clear to all of you Is it clear Any doubt That is why I told you this question could be game changer It seems very easy But this is how You realize that How Christians can make you fool So this is the best question I guess That is why I told you this is a game changer And I kept it in last So this is a 10 10 only I think you all got the point Fine moving Now we will see how many of Your friend has lost their positions One minute So this is the result Can you see that Could I move the next question Could I move the next question Last question of today's quiz Okay There is some connectivity issue But you won't face any difficulty This is the next last question Sorry There is some connectivity issue Okay one minute Can you see my screen Okay I think Okay one minute There is some connectivity issue One minute It's a problem for all of you Yes can you see now I think Fine I have shown it now It's same for all don't worry It's same for all Fine So this is the question Fine tell me the answer of this question 15 of you have made mistake in this question Okay sorry for that Sorry for this question I think you people were not able To see this question properly Okay one minute I will show it again Fine Okay students Can you see my screen the question was very easy No problem The question was very easy this is the result But if you go to the question The question is this The diagram shows Am I audible to all of you One minute students there is some Just a minute One minute I am connecting it back Okay fine Okay Can you see my screen now Yes okay This is the result And I want to show you the question This is the question Okay The question says that Diagram shows the four particles Which two diagrams shows the atom That are isotopes of each other If you see the diagram Most of you got confused in C and D And it is actually confusing So They have asked you Two and three Two and three is isotope and D is two and four So people may got confused In these two and these two But if you see They have asked you that are isotopes of each other Isotopes means Same number of proton But different neutron So two and four is the correct answer That is D That's why most of you got this C wrong Because you have just seen three proton Three proton that's why you marked it Is it clear to all of you Okay it's not three and four Why it can't be three and four Because it is not given in any option It is not given in any option That's why it's not three and four Is it clear There is no option called three and four Yes it's correct Three and four can also be the Isotopes Fine Any other doubt Any doubt students Yes So now that's why 15 and 15 are these So I think you must learn one thing in today's This thing like be Be careful by reading the answers Now we are going to see the leader board And many of your friends Have lost their positions but Aniket has maintained his position Congratulations Aniket Sneha, Satyam Congratulations But many of your friend has Played very well Congratulations to all of you But the main part is whether you Learned or not something Have you learnt something Yes or no Okay students Thank you Bye