Match the Word in Column 1 to Its Definition in Column

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once.
A)An atom differing from another atom of the same element in the number of neutrons in its nucleus
B)A type of emission spectrum showing a series of lines separated by black areas
C)A particle with no electrical charge that is one of the basic structures in the nucleus of an atom
D)The state in which an atom absorbs energy and an electron moves from a lower to a higher energy level
E)A negatively charged particle that is one of the fundamental structural units of the atom
F)Light emitted from a source and separated into its component colors or frequencies
G)The number of protons in the nucleus of an atom
H)The sum of the number of protons and neutrons in the nucleus of an atom
I)The path of electrons as they move around the nuclei of atoms
J)A positively charged particle that is one of the basic structures in the nucleus of an atom
-Atomic mass