Unit 3.2 Review

The atomic number gives you the number of protons in an atom.

A photon is emitted from the gaseous atom.

The region is called an Orbital.

As wavelength increases, energy decreases.

Valence electrons are found in the outermost energy level of an atom and determine the behavior of the atom.

A proton has a positive charge.

A neutron has no charge (neutral).

An electron has a negative charge.

An excited state occurs when an electron has absorbed energy and moved to a higher energy level.

Inner shells are closer to the nucleus and hold fewer electrons, while outer shells are further away and can hold more electrons.