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If an element has a mass number of 200 and an atomic number of 80, how many neutrons does the element have?
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If an element has a mass number of 200 and an atomic number of 80, how many neutrons does the element have?

User Parascus
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Answer:

...

Step-by-step explanation:

neutron =atomic mass-atomic number so

N=200-80

N=120

User Dmitry Minkovsky
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