Describe giving reason which one.of the following pairs has the property indicated i. Fe or Cu has higher melting point ii. '(Co)^2+or '(Ni)^2+ has lower magnetic moment.

Explanation

i. Fe has higher meting point since Fe has 4 unpaird electrons in the 3d subshell. Hences " metallic bonds ăte strónger in Fe than in Cu. in which only one .(e)^(-). fì 4 s subsheli.
electrons
electrons
Henee Ni lus lower magnetic moment than Co as Ni has lower number of unpuired electrons.