Question

what is electronic configuration of copper​

Answer 1

Answer:

Electronic configuration of copper is

1. 1S2 2S2 2P6 3S2 3P6 4S2 3d9 but to attain stable configuration it is written as - 4S1 3d10 for fully stabled configuration..

Answer 2

Answer:

2,8,7

Explanation:

ATOMIC NUMBER OF CHLORINE --> 17

ELECTRONIC CONFIGURATION IS 2,8,7