Which pair of nuclides listed below are isotopes of each other?

CHEMISTRY · Single correct · A Level · Chemistry · Atomic structure · Atomic structure

Problem

Which pair of nuclides listed below are isotopes of each other? (a)

^{14}_{7}\mathrm N

and

^{14}_{6}\mathrm C

(b)

^{16}_{8}\mathrm O

and

^{14}_{7}\mathrm N

(c)

^{14}_{7}\mathrm N

and

^{15}_{7}\mathrm N

(d)

^{14}_{6}\mathrm C

and

^{15}_{7}\mathrm N

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