Octet Guideline?

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Mallika Singh 1G
Posts: 99
Joined: Sat Aug 24, 2019 12:16 am

Octet Guideline?

Postby Mallika Singh 1G » Sun Oct 27, 2019 10:22 pm

Could someone explain the guideline from the notes (8 e- -> s2p6)?

Yuri Lin 4H
Posts: 51
Joined: Sat Aug 17, 2019 12:15 am

Re: Octet Guideline?

Postby Yuri Lin 4H » Sun Oct 27, 2019 10:29 pm

I'm not quite sure if this answers your question, but there are 8 electrons in 2s2,2p6.

Prasanna Padmanabham 4I
Posts: 111
Joined: Thu Jul 25, 2019 12:17 am

Re: Octet Guideline?

Postby Prasanna Padmanabham 4I » Sun Oct 27, 2019 10:31 pm

I'm not sure what exactly you are asking clarification for, but the reason why we use the octet rule is that it usually works for the elements in the first two columns and the last six columns (well noble gases don't really react with anything because they have full octet) of the periodic table. Through experimentation, they found that atoms like to interact with each other so that their valence shell is "full," or that the "s" and the "p" shells are full. This means that some atoms like to let go of their electrons and other atoms "steal" electrons, this also can mean that atoms that both need the same amount of electrons also "bond" and share so that all atoms have eight electrons in the valence shell.

That being said, like all science "rules" the octet rule also has exceptions, but it works for most cases.


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