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which pair of sysbols represent nuclei t...

which pair of sysbols represent nuclei that have the same number of neurons ?

A

`""_(26)^(56)Feand _(28)^(58)NI`

B

`""_(26)^(56)Feand _(26)^(58)Fe^(2+)`

C

`""_(27)^(57)Coand _(26)^(58)Ni`

D

`""_(28)^(57)Niand _(28)^(58)Ni`

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The correct Answer is:
a
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