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The atomic and mass numbers for four different atoms are given below. Which two are isotopes of the same element?


Atom Atomic number Mass number

a 100 257

b 101 257

c 101 260

d 102 259



A.) A and B

B.) B and C

C.) B and D

D.) C and D

Verified Answer :

taskmasters

I think the correct answer from the choices listed above is option B. The two isotopes of the same element are atoms B and C. Having same atomic number means they are the same element. Hope this answers the question.Have a nice day.

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