2.25  [ENDORSED]

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Postby danielruiz1G » Wed May 02, 2018 5:58 pm

In 2.25 I get the correlation of maximum electrons and orbitals for the most part, except for in part c wherein the 1s block the answer is 2 e, when i thought hydrogen could only have 1 electron. how can this be?

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Re: 2.25

Postby annie_finneran_1K » Thu May 03, 2018 3:03 pm

helium is also in the 1s orbital and has 2 electrons, so therefore the 1s orbital can have 2 electrons despite hydrogen having only one.

Jazmin 1H
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Re: 2.25

Postby Jazmin 1H » Thu May 03, 2018 11:46 pm

You're right, hydrogen can only have one electron, but in the s-orbital, you can have a two electrons. If you do electron configurations using the periodic table, you can see that the s-orbital, which is the first two columns, allows for a total of two electrons. I attached a picture to help visualize it. Hopefully that helps. Image

Madeleine Farrington 1B
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Re: 2.25  [ENDORSED]

Postby Madeleine Farrington 1B » Sun May 06, 2018 8:30 pm

I was initially confused about this as well, but I think the key word in this question is "can," meaning what is the maximum possible electrons that can occupy the following orbitals. So, while it is possible to have 1 electron in an s-orbital, the most the s-orbital could hold would be 2 electrons.

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