Nonmetals vs. Metalloids

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Paula Dowdell 1F
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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?

Chem_Mod
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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.

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?


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