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anonymous
 one year ago
The electron configuration 1s^2 2s^2 2p^6 3s^2 3p^6 represents which noble gas?
neon
argon
helium
krypton
anonymous
 one year ago
The electron configuration 1s^2 2s^2 2p^6 3s^2 3p^6 represents which noble gas? neon argon helium krypton

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Photon336
 one year ago
Best ResponseYou've already chosen the best response.3@tomie2020 count the number of electrons in the superscript \[1s ^{2} \] the 2 on top tells you that there are 2 electrons.

Photon336
 one year ago
Best ResponseYou've already chosen the best response.3Now @tomie2020 that you have this number, 18 electrons all you need to do is go back to the periodic table and find what element has 18 electrons

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0seriously its that easy???? i feel dumb now but thanks so much for the help

Photon336
 one year ago
Best ResponseYou've already chosen the best response.3yeah so what noble gas would it be @tomie2020 ? and also they gave you the electronic configuration, in the future you may have to find out the electronic configuration is that's a little bit harder though. you need to follow hunds rule, pauli's exclusion principle, and afbau principles.

Photon336
 one year ago
Best ResponseYou've already chosen the best response.3Noble gases are important because they all have 8 valence electrons.

Photon336
 one year ago
Best ResponseYou've already chosen the best response.3that means that they are unreactive and stable generally, yet sometimes fluorine will react with them though, there are some exceptions to this look at this compound Xenon a noble gas Xenon hexaflouride dw:1444150083226:dw

Photon336
 one year ago
Best ResponseYou've already chosen the best response.3hope this helped you
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