Ga is below Al in the periodic table, but atomic radius of Ga is less than Al. It is because of (a) Lanthanoid contraction (b) Greater screening effect but atomic radius of Ga is less than Al. It is because of (a) Lanthanoid contraction (b) Greater screening effect Ga is below Al in the periodic table November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related