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an atom has an atomic number of 12 and a mass number of 25.how many neutrons does the atom have?
Question
an atom has an atomic number of 12 and a mass number of 25.how many neutrons does the atom have?
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Mathematics
4 years
2021-08-23T08:56:03+00:00
2021-08-23T08:56:03+00:00 1 Answers
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Answer:
The atomic number is the number of protons (12) and the mass number is the number of neutrons and protons combined. So you’d subtract 12 from 25 (25-12=) and that’d get you 13 as your answer. If you need to find the number of electrons, it’ll be the same as the number of protons unless it has a certain charge and if it does, if it’s positive it has more protons (+) than electrons (-), if it is negative it has more electrons (- negatively charged) than protons (+ positively charged)
(credits to halltho)