The atomic number of manganese is 25; its mass number is 55. How many neutrons does an atom of manganese have in its nucleus?
a) 25 b) 80 c) 30 d) 55
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Home » Chemistry » The atomic number of manganese is 25; its mass number is 55. How many neutrons does an atom of manganese have in its nucleus? a) 25 b) 80 c) 30 d) 55