Multiple choice

No two electrons in the atom can have the same set of quantum numbers known as

  1. Hund' s rule

  2. Pauli exclusion principle

  3. Bohr' s rule

  4. Heisenberg principal
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Pauli Exclusion Principle states that no two electrons in an atom can have identical sets of four quantum numbers (n, l, ml, ms). This explains electron arrangement in orbitals and the structure of the periodic table. Hund's rule deals with electron pairing in degenerate orbitals. Bohr's model is about electron orbits. Heisenberg's principle is about position-momentum uncertainty.

Keep practicing — related questions