True: Alkali metals are reactive, The noble gases are inert, Gases fill their container, Mass is conserved in a reaction, CH4 is a molecule, H2O is a compound, NH3 has 4 atoms, False: The halogens are metals, The noble gases have one outer electron, Mass is always lost during a reaction, H2O is an atom, NH3 is an element, CO2 has 2 atoms, Water is an element,

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