A subatomic particle that has no charge and that is found in the nucleus of an atom

An atom that has gained or lost one or more electrons

Substance made of atoms of different elements that are bonded together in a particular ratio

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

Chemical bond formed when two atoms share one or more pares of electrons

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

Process by which substances change into different substances through the breaking and forming of chemical bonds

Substance that is changed by a chemical reaction

Substance formed by a chemical reaction

Measurement of acidity; related to free hydrogen ion concentration in a solution

Compound that donates a proton (H+) when dissolved in a solution

Compound that accepts a proton (H+) when dissolved in a solution