Ch11

Front

Electromagnetic radiation

Back

A form of energy that is propagated through space as a combination of electric and magnetic fields.

Front

Wavelength

Back

The distance between successive crests of a wave, typically used to describe electromagnetic waves.

Front

Frequency

Back

The number of waves that pass a given point per second.

Front

Photon

Back

A particle representing a quantum of light or other electromagnetic radiation.

Front

Quantized energy levels

Back

Specific energy levels that electrons can occupy in an atom, where energy is quantized.

Front

Wave mechanical model

Back

A model of the atom that uses wave functions to describe the probability of finding an electron in a certain area.

Front

Orbital

Back

A region in an atom where there is a high probability of finding electrons.

Front

Principal energy levels

Back

The major energy levels of an atom, designated by the principal quantum number n.

Front

Sublevels

Back

Divisions of principal energy levels in an atom, consisting of orbitals.

Front

Pauli exclusion principle

Back

A principle stating that no two electrons in an atom can have the same set of four quantum numbers.