p block atoms

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Jennifer Lathrop 1F
Posts: 71
Joined: Sat Dec 02, 2017 3:00 am

p block atoms

Postby Jennifer Lathrop 1F » Wed Oct 31, 2018 8:58 pm

If I remember correctly it was mentioned that some p-block atoms can have more than an octet. Is there a way to tell if a certain atom can form more than an octet? Or is it something that is easier just to memorize?

Venya Vaddi 1L
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Joined: Fri Sep 28, 2018 12:16 am
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Re: p block atoms

Postby Venya Vaddi 1L » Wed Oct 31, 2018 9:10 pm

The elements starting from the third period (P, S, Cl) can hybridize the d orbitals and thus have more than an octet.

Vicky Lu 1L
Posts: 60
Joined: Fri Sep 28, 2018 12:18 am

Re: p block atoms

Postby Vicky Lu 1L » Wed Oct 31, 2018 10:41 pm

Atoms from n=3 and on, such as P, S, and Cl can have more than 8 valence electrons as they had a d-orbital to put electrons there. They are able to have an expanded octet since there is an empty orbital (d) that is not used. Atoms on row 2 can't have expanded octets.

Vana Mirzakhani 3I
Posts: 62
Joined: Fri Sep 28, 2018 12:24 am

Re: p block atoms

Postby Vana Mirzakhani 3I » Thu Nov 01, 2018 12:01 am

From the best of my knowledge, I know that if that element is either in or after row 3, it may have more than an octet. Also, if an element is usually past the atomic number of 20, it may have more than an octet as well. Hope this helps.

Stevin1H
Posts: 89
Joined: Fri Sep 28, 2018 12:17 am

Re: p block atoms

Postby Stevin1H » Thu Nov 01, 2018 11:14 am

I believe it is only the elements on the periodic table with an energy level of 3 or greater that can have more than an octet due to having the space of a d orbital.


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