malayah
malayah
06-09-2018
Chemistry
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What are the first 15 elements on the periodic table
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dippitylovelygirl
dippitylovelygirl
06-09-2018
Hydrogen (H) Helium (He) Lithium (Li) Beryllium (Be) Boron (B) Carbon (C) Nitrogen(N) Oxygen (O)
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