abbieprice
abbieprice
09-09-2020
Chemistry
contestada
What is the mass number of an atom?
Respuesta :
ram78
ram78
09-09-2020
The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same. For example, the mass number of argon atoms and calcium atoms can both be 40.
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kimberlyoneal97
kimberlyoneal97
09-09-2020
Answer:
it’s total number of protons and neutrons
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-15=-4m+58n+7=31-10=10(k-9)
