Nonmetals vs. Metalloids

Moderators: Chem_Mod, Chem_Admin

Post Reply
Paula Dowdell 1F
Posts: 72
Joined: Tue Nov 15, 2016 3:00 am

Nonmetals vs. Metalloids

Postby Paula Dowdell 1F » Wed Nov 08, 2017 7:10 pm

Hi,
I read in the textbook that period three and on "non-metal" atoms may expand their valence shells. Are metalloids in this case considered non-metals?
Top
Chem_Mod
Posts: 23858
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 1253 times

Re: Nonmetals vs. Metalloids

Postby Chem_Mod » Wed Nov 08, 2017 7:40 pm

The only metalloid in periods 1 and 2 is Boron, and Boron can't have an expanded octet.
Top
Paula Dowdell 1F
Posts: 72
Joined: Tue Nov 15, 2016 3:00 am

Re: Nonmetals vs. Metalloids

Postby Paula Dowdell 1F » Wed Nov 08, 2017 9:32 pm

but are metalloids considered non-metals for periods 3 and on?
Top
Post Reply

Return to “Octet Exceptions”

Who is online

Users browsing this forum: No registered users and 2 guests