kmitch2596 kmitch2596

22-10-2017
Chemistry

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If an element has a mass number of 208 and an atomic number of 83, how many neutrons does the element have?

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Аноним Аноним

22-10-2017

Hello There!

To work out neutrons you have to subtract the atomic number from the mass.
Mass = 208
Atomic number = 83
Neutrons = Mass - Atomic Number
Neutrons = 208 - 83
Neutrons = 125.
It has 125 neutrons.

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