Exceptions to the Octet

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joannehaddad
Posts: 31
Joined: Fri Apr 06, 2018 11:03 am

Exceptions to the Octet

Postby joannehaddad » Fri May 18, 2018 1:07 pm

The 3rd row elements and below can expand their octet, but I was wondering if there was a limit to how many extra electrons we can add to these elements?

Nienjou Claire 1E
Posts: 30
Joined: Fri Apr 06, 2018 11:05 am

Re: Exceptions to the Octet

Postby Nienjou Claire 1E » Fri May 18, 2018 1:07 pm

I remember my TA saying that you can add up to 10 extra electrons since it is the d block that is involved in the expanded octet and it can hold ten electrons.

204917020
Posts: 31
Joined: Fri Apr 06, 2018 11:05 am

Re: Exceptions to the Octet

Postby 204917020 » Fri May 18, 2018 4:50 pm

I agree with @Nienjou Claire. They can have up to ten electrons because that's how many e- are needed to fill the d block.

MadelynNguyen1F
Posts: 59
Joined: Fri Apr 06, 2018 11:04 am

Re: Exceptions to the Octet

Postby MadelynNguyen1F » Fri May 18, 2018 7:19 pm

Yes, it would be 10 electrons because the d subshell has 5 orbitals with two electrons each.

kimberlysanchez-1E
Posts: 30
Joined: Tue Nov 14, 2017 3:01 am

Re: Exceptions to the Octet

Postby kimberlysanchez-1E » Fri May 18, 2018 7:39 pm

would they also have the f block available?

Kate Manganaro 1F
Posts: 32
Joined: Fri Apr 06, 2018 11:03 am

Re: Exceptions to the Octet

Postby Kate Manganaro 1F » Sun May 20, 2018 6:10 pm

Another thing to remember is that it is okay if Boron and the other elements in its column don't necessarily need to fill their octets.


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