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Physics, 01.08.2019 21:30 kingdrew27
In the symbol 42he, the subscript 2 is the for helium and the superscript 4 is the for helium. atomic mass; atomic number atomic number; atomic mass mass number; atomic number atomic number; mass number
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In the symbol 42he, the subscript 2 is the for helium and the superscript 4 is the for helium. ato...
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