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How many neutrons does element X have if its atomic number is 56 and its mass number is 157

How many neutrons does element X have if its atomic number is 56 and its mass number is 157
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How many neutrons does element X have if its atomic number is 56 and its mass number is 157

User Sunil Shah
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1 Answer

4 votes
Protons: 56
Electrons: 56
Neutrons: 157-56 = 101
User Donohoe
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