Chapter 2 Vocab

Front

Smallest unit of matter.

Back

Atom

Front

Substance made of one type of atom, not broken down chemically.

Back

Element

Front

Substance made of atoms of different elements bonded in a specific ratio.

Back

compound

Front

Atom that has gained or lost electrons.

Back

Ion

Front

Chemical bond formed by electrical force between oppositely charged ions.

Back

Ionic bond

Front

Chemical bond formed when two atoms share pairs of electrons.

Back

Covalent bond

Front

Two or more atoms held by covalent bonds; not necessarily a compound.

Back

Molecule

Front

Attraction between a slightly positive hydrogen atom and a slightly negative atom.

Back

Hydrogen bond

Front

Attraction between molecules of the same substance.

Back

Cohesion

Front

Attraction between different substances.

Back

Adhesion