Karpetwolfearly
Karpetwolfearly
22-04-2016
Chemistry
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What is mass number?
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ellybubble
ellybubble
24-04-2016
Mass number on the periodic table is the bigger number. For example, Hydrogen's atomic number is 1, and mass number is 1.008. The mass number (rounded) is the total number of neutrons and protons in an atom.
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