 So anyways give the complete electronic configuration of each element. So the first one is beryllium So can you guys help me with that one? So what I would it be 1s2 2s2 That's it, right nitrogen 1s2 2s2 2p3 very good, and so Are these in your powerpoint? Yeah, this is my powerpoint. Like I said, I didn't get anything. So we're just doing what I got. 2s2 2p6 3s1 Okay, so now let's convert these to the condensed electronic configuration or noble gas in the electronic configuration Pardon? So no so in some cases so wait you're talking about making the ion, right? That's what you're talking about. Let's just do the noble gas configuration. Okay. I promise you I know what I'm talking about I've done this before. Okay, so beryllium. What's the noble gas before that? Helium, so how do we write? 18 N of rake. Okay, and then what do we do write the valence electrons? 2s2 So if you're talking about wanting to make the ion, right, what's beryllium's common ion? Come on guys. But b2 plus you would expect it to be, right? Why? Because it's got these two valence electrons so they get lost. Is everybody okay with that? And so the noble gas electron configuration for the ion is yours. Okay, so let's do the same for nitrogen What would be the condensed electron configuration? Helium, start there, and then 2s2, 2p3 What's the common ion for nitrogen? And 3 minus, right? And 3 minus. So what's the deal with the common ion? It's why we're writing this. Because you're eventually going to have to do them in chapter 6 anyway, so let's just do them right now. Yeah, we'll just do a full problem with them. Okay, so should we I don't think we need to write the full electron configuration. Should we write the full electron configuration for this time? Let's just write it. Okay, let's just write it. So it's gonna be the same as this thing here plus what? Three more electrons, right? So what is it gonna be? 1s2, 2s2, 2p6 So what's the noble gas electron configuration for that? Neon. Wait, why are you adding three? I'm confused. Why would you add three? Because you add three because electrons are these numbers here, right? And so if we have this, what does that mean? We've added three more electrons. Who am I talking to? Somebody over here views. Okay, so sorry, I always turn it around. So we have three more electrons here. We've got to add three more electrons here because this is the what? Electron configuration, right? Okay, so when we do that, we get up to the noble gas and neon. Does that make sense to everybody? Okay, so sodium, what's the noble gas configuration for sodium? Come on, help me out over here somebody. Neon. Is that it? 3s1. Everybody cool with that one? What's the common ion for sodium? Na plus. Okay, and so what would be the condensed electron configuration for Na plus? The condensed electron configuration. The condensed electron configuration. Oh noble gas and electron configuration. Neon. Do you make, does that make sense? Okay, so if I asked you, are any of these ions isoelectronic? Do you guys know what that means, isoelectronic? So isoelectronic means the same electron configuration as, okay? So do any of these ions have the same electron configuration as each other? Na plus and Na minus and what? Na plus, right? No, they both have neon as their electron configuration, right? But Na plus and Na3minus are two ions that are isoelectronic, does that make sense? At least placate me and say, yes this makes sense, if it makes sense, okay? And are any of them isoelectronic? Yes. Those two. Okay. And isoelectronic if you want to know how to spell it. So would we call it this one?