Vocab Test A (#s 1, 2, & 3)

Front

Negatively charged particles orbiting the nucleus, forming the electron cloud (minimal mass)

Back

Electrons

Front

Positively charged particles in an atom's nucleus (have mass)

Back

Protons

Front

Neutral particles in the atom's nucleus with mass

Back

Neutrons

Front

Smallest particle of an element with its properties

Back

Atom

Front

A combination of compounds and elements that hasn't formed a new substance and whose proportions can change without altering its identity.

Back

Mixture

Front

A form of matter made of one kind of atom

Back

Element

Front

A substance formed when elements combine, differing in properties from its elements.

Back

Compound

Front

Matter with uniform properties and composition

Back

Pure Substance

Front

Smallest particle of a substance retaining its chemical and physical properties.

Back

Molecule

Front

Non-uniform mixture of visible parts

Back

Heterogeneous Mixture