Chemistry Benchmark Vocabulary

Front

Precipitate

Back

A solid formed when two liquids are mixed and chemically react.

Tags

NGSS.MS-PS1-2

Front

Protons

Back

Positive particles in an atom.

Front

Periodic Table

Back

A chart that shows all known elements, arranged in order of fewest protons to most protons.

Front

Reactant

Back

A substance on the left-hand side of an arrow in a chemical equation that undergoes a chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Halogens

Back

Group 17 elements that have 7 valence electrons.

Front

Neutrons

Back

Neutral particles in an atom that contribute to the atomic mass.

Front

Atomic Number

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

Molecule

Back

A group of two or more atoms bonded together.

Tags

NGSS.MS-PS1-1

Front

Chemical Reaction

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Ionic Bond

Back

A type of chemical bond that occurs between two atoms when one atom donates an electron to another.