Alkenes
Hydrocarbons with at least one carbon-carbon double bond. Their general formula is CnH 2 n.
Alkynes
Hydrocarbons with at least one carbon-carbon triple bond. Their general formula is CnH 2 nā 2.
Alpha (Ī±) particle
A particle ejected from the nucleus in one form (adjust F) of radioactive decay, identical to the
helium-4 nucleus.
Amines
Compounds of the general formula R-NH 2 , R 2 -NH, or R 3 -N.
Amino acids
Building blocks of proteins with the general formula NH 2 C-R-HCOOH.
Amorphous solids
Solids that do not possess long-range order. Compare to crystals or crystalline solids.
Amphoteric species
A species capable of reacting either as an acid or as a base.
Anhydride
A compound obtained by the removal of water from another compound.
Anion
An ionic species with a negative charge.