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a student needs to find the mass of an atom. the numbers of which atomic particles determines the mass of the atom?
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a student needs to find the mass of an atom. the numbers of which atomic particles determines the mass of the atom?

User Retendo
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6 votes

Answer:

Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

Step-by-step explanation:

User Albodelu
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