Question

The statement "No two electrons in an atom can have all the four quantum numbers identical" is known as the__________.

• A. Pauli's exclusion principle
• B. Aufbau Principle
• C. Hund's rule
• D. Heisenbergs principle

Answer 1

The correct option is A Pauli's exclusion principle

According to Pauli's exclusion principle, it is impossible for two electrons of a poly-electron atom to have the same values of the four quantum numbers: $n$, the principal quantum number, $l$, the angular momentum quantum number, $m$, the magnetic quantum number, and $s$, the spin quantum number.