Quantum Theory

Front

Heisenberg Uncertainty Principle

Back

Impossible to know both velocity and position of a particle at the same time

Front

Orbital

Back

Region around the nucleus that can house zero, one, or two electrons

Front

Electron Cloud

Back

Region around the nucleus where electrons are likely to be found

Front

Electron configuration

Back

Arrangement of electrons in an atom's ground state into various orbitals

Front

Orbital diagram

Back

Pictorial representation of electron configuration showing orbitals as boxes and electrons as arrows

Front

Noble gas configuration

Back

Shorthand notation for electron configuration starting with the noble gas in brackets

Front

Isoelectronic

Back

Molecules or ions with similar shape and electronic properties, same number of valence electrons

Front

Energy level

Back

Specific energies an electron can have, denoted by periods on the periodic table

Front

Sublevel

Back

Atomic orbital or collection of orbitals that occupy a principal energy level

Front

Pauli Exclusion Principle

Back

An atomic orbital may describe at most two electrons with opposite spin