More then 8 electrons

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Leslie Almaraz 4G
Posts: 79
Joined: Fri Aug 02, 2019 12:16 am

More then 8 electrons

Postby Leslie Almaraz 4G » Mon Nov 11, 2019 12:09 am

If an element has more than 8 electron in the outer shell, is this allowed because it has another orbital it can fill?

Vanessa Chuang 4F
Posts: 51
Joined: Sat Aug 24, 2019 12:18 am

Re: More then 8 electrons

Postby Vanessa Chuang 4F » Mon Nov 11, 2019 12:32 am

Yes you are correct. The reason why an element can possibly have an extended octet (aka more than 8 electrons in the outer shell) is because there is the d orbital that the extra electrons can fill. This is the reason all elements located in rows 1 and 2 cannot possibly have more than 8 electrons because they have no d orbital to carry those extra electrons.

Jennifer Yang 3F
Posts: 56
Joined: Wed Sep 11, 2019 12:17 am

Re: More then 8 electrons

Postby Jennifer Yang 3F » Mon Nov 11, 2019 12:34 pm

Yes, it can fit into the d orbital.

lasarro
Posts: 55
Joined: Thu Jul 11, 2019 12:15 am

Re: More then 8 electrons

Postby lasarro » Mon Nov 11, 2019 12:42 pm

If the highest energy level is a d orbital, then yes, the atom can hold up to 10 valence electrons.

SVajragiri_1C
Posts: 85
Joined: Thu Jul 11, 2019 12:16 am

Re: More then 8 electrons

Postby SVajragiri_1C » Mon Nov 11, 2019 1:42 pm

It is only allowed when the the central atom with the expanded octet is in the 3rd row of the periodic table or below, because only these elements have a d-orbital.

sarahsalama2E
Posts: 143
Joined: Fri Aug 30, 2019 12:16 am

Re: More then 8 electrons

Postby sarahsalama2E » Mon Nov 11, 2019 2:41 pm

Yes, this is allowed because it has an expanded octet due to the d orbital which can hold up to 10 electrons.


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