vinnysclash217 vinnysclash217
  • 20-03-2017
  • Chemistry
contestada

. In the symbol (4/2) He, the superscript 4 is the _________________ for helium, and the subscript 2 is the ___________________ for helium.

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KingOfShadows
KingOfShadows KingOfShadows
  • 20-03-2017
the superscript is the atomic mass and the subscript is the atomic number
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