coolbeastpro7114 coolbeastpro7114

25-09-2018
Chemistry

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How many neutrons are present in a nucleus whose atomic number is one and whose mass number is one?

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jamesrlewis5000 jamesrlewis5000

25-09-2018

Because the proton has a mass of 1 and a neutron has a mass of 1, we know that there is exactly one proton in the nucleus (because of the atomic number) which therefore tells us there are no neutrons as adding one would make the mass more than one.

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