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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: vhpk on August 27, 2007, 12:16:09 AM

Title: Why does the radius of Ga < the radius of Al, in theory it must be bigger
Post by: vhpk on August 27, 2007, 12:16:09 AM

Why does the radius of Ga < the radius of Al, in theory it must be bigger

Title: Re: IIIA
Post by: Yggdrasil on August 27, 2007, 12:49:07 AM

According to wikipedia, the radius of Ga (130pm) > the radius of Al (125pm)

http://en.wikipedia.org/wiki/Aluminium
http://en.wikipedia.org/wiki/Gallium

Title: Re: Why does the radius of Ga < the radius of Al, in theory it must be bigger
Post by: sjb on August 28, 2007, 06:46:39 AM

Quote from: vhpk on August 27, 2007, 12:16:09 AM

Why does the radius of Ga < the radius of Al, in theory it must be bigger

Are you measuring (or looking up) comparable values?

Ga³⁺, for instance is possibly smaller than Al...

S