Question

Write the electronic configuration of copper (29) and give the value of n and for the valence shell electron

Answer 1

Z of Cu = 29

∴ Number of electrons = 29

Or, electronic configuration: 2 + 8 + 18 + 1

K: 2(1)² = 2

L: 2(2)² = 8

M: 2(3)² = 18

N: 1 (valence shell)

Value of 'n' for the valence shell electron will be 4.