Week 6 Vocabulary practice Chemistry of Life: Atoms & Molecules

The smallest unit of matter that retains all of the chemical properties of an element.

A substance that cannot be broken down into any other substance.

A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

A uncharged atomic particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus.

The total mass of particles of matter in an atom.

An atom or group of atoms that bears one or more positive or negative electrical charges.

Outer shell electron is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed.

A chemical bond wherein there is a transfer of an electron from one atom to another.