Atomic Structure - Wk. 5 Vocab

Front

Electrons in the outermost shell of an atom.

Back

Valence Electrons

Front

Outermost shell of an atom determining reactivity.

Back

Valence Shell

Front

Region around nucleus where electrons circle.

Back

Orbital (Electron shell)

Front

Also called electron shells; distance from nucleus where electrons may be found.

Back

Energy Levels

Front

Rate of a chemical reaction.

Back

Reactivity

Front

Sum of negative and positive charges.

Back

Net Charge

Front

An element's Atomic Number equals its number of?

Back

Protons

Front

An element's Atomic Mass equals its total number of?

Back

Protons & Neutrons

Front

Subatomic particles in the nucleus?

Back

Protons & Neutrons

Front

Subatomic particles in the Electron Cloud?

Back

Electrons