jerr2
jerr2
18-12-2016
Chemistry
contestada
how is the mass number calculated for an element
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SuhaaZaidi
SuhaaZaidi
18-12-2016
Find the number of protons and neutrons of that element and add them together. You might need periodic table. Hope it helps.
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Аноним
Аноним
18-12-2016
Mass number=Atomic number+ number of neutrons. Hope it helps
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