Question

What is the valency of cu in cucl2

Answer 1

Copper has an atomic number of 29 and its electronic configuration is 1s2, 2s2, 2p6, 3s2, 3p6, 3d10, 4s1. ... Copper is one of the transition elements and thus exhibits variable oxidation states. It has two valencies: +1 and +2 and the corresponding atoms are termed as Cuperous (+1 valency) and Cupric (+2 valency).

Answer 2

Answer:

2

Explanation:

Cl valency is 1

So by criss crossing we could get