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the on `^(55)Mn^(2+)` contains which comnination of protons neutrous and eleectrons? `{:(,"protons","neutrons","Electrons"),(A,25,30,23),(B,25,55,23),

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the on `^(55)Mn^(2+)` contains which comnination of protons neutrous and eleectrons?
`{:(,"protons","neutrons","Electrons"),(A,25,30,23),(B,25,55,23),(C,27,30,25),(D,30,25,28):}`
A. A
B. B
C. C
D. D
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Correct Answer - a
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