1.

Write the electronic configuration of Ce4+ and CO2+

Answer»

Ce (Z = 58) → Ce4 +4e- 

Ce4+ – Is2 – 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 

CO2+ – Is2 2s2 2p6 3s2 3p6 4s2 3d5



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