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All Comments (12)
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is she reading what she's saying?
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Thx so much, that really helped!
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this is sooooooooooooooooooo boring i prefer school
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This egypt girl is very smart! i never expected
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How do they know all matter in the universe is made from matter?considering we have explored less the 0% thats a bold statement coming from someone who is meant to be a educated scientist!
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Also they are organized by Atomic WEIGHT! That's where they get their number from. Otherwise you are saying that the Russian numbered them by number, which is circular logic.
Lightest being 1 Hydrogen-1. With just one Proton and no Neutron whilst remaining relatively stable.
Hydrogen-2 being stable with 1 neutron.
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Proton, Neutron, Electron rings bells?
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If she'd speak in my native language (swedish) it would be really interesting and i would actually understand something ;)
You mean MENDELEEV?
emmaisorganized 1 year ago 3
poor
nazarak 2 years ago 3