Question
Fri May 25, 2012 By: V Raja

COMPARE THE FIRST IONISATIONENERGY OF ALUMINIUM (Z=13) WITH THAT OF MAGNESIUM (Z=12) jUSTIFY YOUR ANSWER

Expert Reply
Mon May 28, 2012
Magnesium has higher first ionisation energy as it has fulfilled s-orbital. Aluminium has electronic configuration 2s22p6 3s2p1. So, it is comparatively easy to remove this electron.
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