Question

brainlywashiyo ❤

write a short note on the following..
(a) Aufbau rule
(b) Hund's rule
(c) pauli exclusion principle

achhe se likhiyo​

Answer 1

Answer

(a) The Aufbau principle states that electrons fill lower-energy atomic orbitals before filling higher-energy ones

(a) The Aufbau principle states that electrons fill lower-energy atomic orbitals before filling higher-energy ones(b) 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.

(a) The Aufbau principle states that electrons fill lower-energy atomic orbitals before filling higher-energy ones(b) 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.(c) The Pauli exclusion principle states that in a single atom no two electrons will have an identical set or the same quantum numbers