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The mass number of a nucleus is
(a) Always less than its atomic number
(b) Always more than its atomic number
(c) Sometimes more than and sometimes equal to its atomic
number
(d) None of the above
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Answer / cryolife
The mass number of a nucleus is Sometimes more than and
sometimes equal to its atomic number.
massnumber= protons + neutrons.
atomic number= Either protons or electrons mass.
So mass number of a nucleus is Sometimes more than and
sometimes equal to its atomic number.
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