Question

Identify the pair which is not isotopes?
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Answer 1

Answer:

option c

Step-by-step explanation:

since the atomic number of both is different

Answer 2

Answer:

c

Step-by-step explanation:

option c is not a isotope

isotope is defined as same automic number but different mass number

in option c automatic numbers are 6 and 7 so not equal so it is not a isotopes