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How many neutrons does element X have if its atomic number is 47 and its mass number is 151?

How many neutrons does element X have if its atomic number is 47 and its mass number is 151?
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How many neutrons does element X have if its atomic number is 47 and its mass number is 151?

User Urdesh Kumar
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1 Answer

3 votes
104 neutrons.
All you do is subtract the number of atomic number (proton) from the mass number.
User Imcg
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