what are the the atomic sumber Number of electroins and Number of neutrons in a Hydxogen ( 1/1H )please give me answer of this question please
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The number of protons is the atomic number, and the number of protons plus neutrons is the atomic mass. For hydrogen, the atomic mass is 1 because there is one proton and no neutrons. For helium, it is 4: two protons and two neutrons.
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