Question

How many unpaired electrons are there in
Yb2+, Ce4+", Eu2+ and Tb4+ ions?​

Answer 1

Answer:

The order of filling the orbits is, 1s,2s,2p,3s, 3p ,4s ,3d ,4p ,5s , 4d ,5p ,6s ,4f, 5d ,6p ,7s.:

0

Answer 2

Explanation:

To find the unpaired electrons first write the configuration in ground state then according to the oxidation state subtract the no. of electrons from the outer shell.

so according to the rule-

Yb²+ has 0 unpaired electrons

Ce⁴+ has 0 unpaired electrons

Eu²+ has 7 unpaired electrons

Tb⁴+ has 7 unpaired electrons