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Science: Chemistry Facts

A proton and a neutron have about the same ____ (1 amu). catalyst
A ____ contains atoms of at least two different elements. cation
An ____ consists of only one type of atom. compound
A group of atoms held together by covalent bonds is a ____. element
A positively charged ion is called a ____. ion
A ____ is subatomic particle with a positive charge. mass
A ____ increases the rate of a chemical reaction. molecule
Any atom or molecule that has a charge is an ____. proton