Question

what is hunds law explain

Answer 1

Hund's rule:
every orbital in a subshell is singly occupied with one electron before any one orbital is doubly occupied, and all electrons in singly occupied orbitals have the same spin.

Answer 2

As per the Hund's law,every orbital is singly occupied with an electron before is doubly copied and all the electrons in singly occupied orbitals have the same spin.