Atomic Structure & Periodicity
3 terms
Halogens
Atomic Structure & Periodicity
Dimensionless
The group 17 elements — fluorine through astatine — which are one electron short of a full outer shell.
ns² np⁵
Heisenberg Uncertainty Principle
Atomic Structure & Periodicity
J·s
The principle that the position and momentum of a particle cannot both be known to arbitrary precision at the same time.
Δx · Δp ≥ h / 4π
Hund's Rule of Maximum Multiplicity
Atomic Structure & Periodicity
Dimensionless
The rule that electrons occupy degenerate orbitals singly with parallel spins before any orbital is doubly occupied.
maximise total spin S