Oct 17, 2026Discover why the second principal energy level can only hold up to 8 electrons due to quantum rules and electron orbital capacities.

Oct 13, 2026Discover why the second energy level holds 8 electrons, explained through orbitals, Pauli exclusion principle, and Hund's rule.

Oct 3, 2026Discover why the first energy level of an atom can only hold 2 electrons according to quantum mechanics and the Pauli exclusion principle.