Question

Which is the electron configuration for lithium?

Answer 1

[He] 2s¹ or 1s² 2s¹ is lithium's electron configuration

Answer 2

Lithium element is present in S-block and belongs to IA group and also called as Alkali metal.

Lithium has atomic number-3

And electronic configuration-1s2 2s1

Or [He] 2s1