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jc chemistry

the atom

element substance consisting of only one type of atom
atom smallest part of an element that can exist independently
atomic number number of protons in the atom of an element
mass number number of protons and neutrons in the atom of an element
valency number of electrons an element needs to lose, gain or share to achieve a full outer shell of electrons
compound two or more elements chemically combined
mixture two or more substances mingled together
Created by: kildangan