Octet Exceptions

Moderators: Chem_Mod, Chem_Admin

Ruiting Jia 4D
Posts: 65
Joined: Fri Sep 28, 2018 12:27 am

Octet Exceptions

Postby Ruiting Jia 4D » Sun Oct 28, 2018 1:12 pm

How come H, He, Li, Be are the octet exceptions?

Ryan Troutman 4L
Posts: 68
Joined: Fri Sep 28, 2018 12:22 am

Re: Octet Exceptions

Postby Ryan Troutman 4L » Sun Oct 28, 2018 1:15 pm

Hydrogen and Helium are exceptions to the octet rule since a full shell is only 2 electrons (1s1,1s2). Lithium and Beryllium are more likely to lose electrons instead of gain them and become cations (Li+1) and (Be+2). Hope this helps :)

Erica Li 1C
Posts: 31
Joined: Fri Sep 28, 2018 12:17 am

Re: Octet Exceptions

Postby Erica Li 1C » Sun Oct 28, 2018 1:23 pm

Just to add on to that, they follow the duplet rule as opposed to the octet rule!

Milena Aragon 2B
Posts: 60
Joined: Fri Sep 28, 2018 12:19 am

Re: Octet Exceptions

Postby Milena Aragon 2B » Sun Oct 28, 2018 8:21 pm

And to add on to that, the duplet rule just means that the element is looking to fill the 1s orbital since it is the most stable that way. This rule only applies to the first five elements of the periodic table.


Return to “Octet Exceptions”

Who is online

Users browsing this forum: No registered users and 1 guest