Maharashtra State PSC 2016 Solved Paper
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Question : 56 of 100
Marks:
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Which one of the following statements is/are correct?
a. The number of protons in a nucleus is called its atomic number.
b. The total number of protons and neutrons constitutes its mass number.
a. The number of protons in a nucleus is called its atomic number.
b. The total number of protons and neutrons constitutes its mass number.
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