Question

Write the electronic configuration of the atom of an element having atomic number 12. Write the
names of the rules and the laws followed by you in writing this electronic configuration.​

Answer 1

Answer:

1s2 2s2 2p6 3s2 it is according to afbaus principles

Answer 2

Answer:

1s*2 2s*2 2p *6 3 s*2

it's according to afbau principle which states that electrons are filled according to their increasing energy with orbital with lowest energy first....

hope it helps... hunds rule also.. somewhere in case of p orbital