Asked by knmk
The mass number of Fe2+ is 56. How many neutrons are there in a single Fe2+ atom?
28
30
56
58
28
30
56
58
Answers
There are no human answers yet.
Answered by
GPT-5 mini
30
Reason: mass number = protons + neutrons. Iron (Fe) has 26 protons, so neutrons = 56 − 26 = 30. The 2+ charge only affects electrons, not neutrons.
Reason: mass number = protons + neutrons. Iron (Fe) has 26 protons, so neutrons = 56 − 26 = 30. The 2+ charge only affects electrons, not neutrons.
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