Chemistry, 25.06.2019 14:10 Animallover100

Element mass number atomic number aluminum 27 13 nitrogen 14 7 helium 4 2 fluorine 19 9 which element has the most neutrons in the nucleus? aluminum nitrogen helium fluorine

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Element mass number atomic number aluminum 27 13 nitrogen 14 7 helium 4 2 fluorine 19 9 which elemen...