Bio 1 Vocab 2.1

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

Basic unit of matter

A chemical bond resulting from the attraction between oppositely charged ions.

A region that is located at the center of an atom and contains most of the atom's mass.

A slight attraction that develops between the oppositely charged regions of nearby molecules (caused by polar bonds)

A pure substance that consists entirely of one type of atom so they all have the same number of protons.

A subatomic particle that has a negative charge.

A group of atoms held together by covalent bonds.