misswonderless misswonderless

01-10-2018
Chemistry

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An isotope of mercury has 80 protons and 120 neutrons. What is the mass number of this isotope.

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Stilisvvs Stilisvvs

01-10-2018

The mass number of any isotope is equal to the number of protons and neutrons combined. In your example it is 80 + 120 = 200

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