Question about H electron configuration

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Bingcui Guo
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Joined: Fri Sep 28, 2018 12:19 am

Question about H electron configuration

Postby Bingcui Guo » Thu Oct 25, 2018 12:04 pm

The textbook says for H and He atoms, since they have only one or two electrons which can occupy any orbitals, then how should we write the electron configuration for these 2 atoms? 1s1 1s2 or others?

AvaGordon_4F
Posts: 34
Joined: Fri Sep 28, 2018 12:25 am

Re: Question about H electron configuration

Postby AvaGordon_4F » Thu Oct 25, 2018 12:24 pm

I am also confused about this. When the single electron in an H atom is excited up to, say, 5p, does it just bypass all the intermediate shells and subshells? Does it drop immediately down? Can it exist in that excited state for long? I'm just not sure I'm conceptualizing this properly...

juliefilice 4A
Posts: 31
Joined: Fri Sep 28, 2018 12:27 am

Re: Question about H electron configuration

Postby juliefilice 4A » Thu Oct 25, 2018 4:11 pm

We write electron configurations for the ground state, so yes it would be 1s1 for H and 1s2 for He. An excited H electron will pass all energy levels up to the one matching the energy of the photon, and then fall right back down to release the energy as light.

Erin Kim 2G
Posts: 75
Joined: Fri Sep 28, 2018 12:26 am

Re: Question about H electron configuration

Postby Erin Kim 2G » Thu Oct 25, 2018 4:15 pm

The electron configuration for H is 1s1 and for He is 1s2. If the element is stated as being an anion or cation then you would accordingly add or remove electrons.


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