Valence Electrons

Moderators: Chem_Mod, Chem_Admin

Shundeen Martinez 1D
Posts: 31
Joined: Fri Sep 28, 2018 12:18 am

Valence Electrons

Postby Shundeen Martinez 1D » Tue Oct 30, 2018 10:28 pm

Which elements can have more than 8 valence electrons when being bonded?

Patrick Cai 1L
Posts: 93
Joined: Fri Sep 28, 2018 12:25 am

Re: Valence Electrons

Postby Patrick Cai 1L » Tue Oct 30, 2018 10:47 pm

An example of an element being bonded with more than 8 valence electrons shared is phosphorus in the compound phosphorus pentachloride (PCl5), which forms an expanded octet to accommodate this change.

105002507
Posts: 30
Joined: Fri Sep 28, 2018 12:15 am

Re: Valence Electrons

Postby 105002507 » Wed Oct 31, 2018 12:04 am

I thought phosphorus had 5 valence electrons?

gillianozawa4I
Posts: 31
Joined: Fri Sep 28, 2018 12:27 am

Re: Valence Electrons

Postby gillianozawa4I » Wed Oct 31, 2018 12:19 am

PCl5 has five bonds, meaning there are 10 valence electrons. Therefore, PCl5 has an expanded octet. Since P is in Period 3, it is allowed to have an expanded octet. Hope this helps!

Sameen Mahmood 3D
Posts: 37
Joined: Wed Jun 13, 2018 3:00 am

Re: Valence Electrons

Postby Sameen Mahmood 3D » Wed Oct 31, 2018 1:13 am

Elements in period 3 or later that have a d subshell

Zubair Ahmed 1L
Posts: 81
Joined: Fri Sep 28, 2018 12:16 am

Re: Valence Electrons

Postby Zubair Ahmed 1L » Wed Oct 31, 2018 11:17 am

Phosphorous can have 5 bonds since it is in Period 3 and the d-block is included within it. As a result, it has 10 valence electrons and can create 5 bonds.

Rian Montagh 2K
Posts: 60
Joined: Fri Sep 28, 2018 12:15 am

Re: Valence Electrons

Postby Rian Montagh 2K » Wed Oct 31, 2018 11:21 am

Is phosphorus more stable with 10 or 8 electrons?

isarose0
Posts: 62
Joined: Fri Sep 28, 2018 12:15 am

Re: Valence Electrons

Postby isarose0 » Wed Oct 31, 2018 11:49 am

Phosphorus, Sulfur and Chlorine can accommodate more than 8 valence electrons.


Return to “Lewis Structures”

Who is online

Users browsing this forum: No registered users and 2 guests