Biology

Where neutrons and protons are located at the center of the atom.

Positively charged particles (p+)

Particles with no charge (n0)

Negatively charged particles (e-)

Pure substance that cannot be broken dowm.

Atoms of the same element that have different numbers of neutrons.

Pure substance formed when two or more different elements combine.

The chemical bond that forms when electrons are shared.

A compound in which the atoms are held together by covalent bonds.

Atom that is negatively or positively charged.

Electrical attraction between two opposite charged atoms or groups of atoms called ions.

Attractive forces between molecules.