PS Unit 3 Flashcards

Front

Compound

Back

Substance formed by the chemical combination of two or more elements in definite proportions.

Front

Chemical bond

Back

The attractive force that holds atoms or ions together.

Front

Ionic Bonds

Back

Bond formed when one or more electrons are transferred from one atom to another.

Front

Covalent Bond

Back

A chemical bond that involves sharing a pair of electrons between atoms in a molecule.

Front

Molecule

Back

A group of atoms bonded together into the smallest unit of most compounds.

Front

Melting Point

Back

The temperature at which a solid becomes a liquid.

Front

Boiling Point

Back

The temperature at which a liquid changes to a gas.

Front

Conductivity

Back

A material's ability to allow heat or electric charges to flow.

Front

Charge

Back

A measure of the extra positive or negative particles that an object has.

Front

Law of Conservation of Matter

Back

Matter is not created nor destroyed in any chemical or physical change.