Iwill rate
an isotope of mercury has 80 protons and 120 neutrons. what is the mass number of...
Chemistry, 16.09.2019 17:40 kcarstensen59070
Iwill rate
an isotope of mercury has 80 protons and 120 neutrons. what is the mass number of this isotope?
i think that it is 200 but i am unsure
Answers: 2
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