Question

What is the electronic configuration of an element in its first excited state which is isoelectronic with o2?

Answer 1

Answer:

O has 8 electrons

O2 has 16 elecrons

Isoelectronic element to O2 is Sulphur with atomic no. 16 i. e it contains 16 elecrons

Electronic configuration of S in ground state:

1s^2 2S^2 2P^6 3S^2 3P^4

Electronic configuration of S in excited stage:

1S^2 2S^2 2p^6 3S^1 3p^5