Physics, 27.10.2019 00:43, megamorph

A(n) is a pure substance that is made of only one kind of atom. the symbol for a(n) is always one or two letters. when the symbol contains two letters, the first letter is always and the second letter is always

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A(n) is a pure substance that is made of only one kind of atom. the symbol for a(n) is always one...