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The nucleides X and Y are isotonic to ea...

The nucleides X and Y are isotonic to each other with mass numbers 70 and 72 respectively. If the atomic number of X is 34, then that of Y would be

A

32

B

34

C

36

D

38

Text Solution

Verified by Experts

The correct Answer is:
C
the isotonic species have same number of neutrons.
Neutrons in X=70-34=36
Neutrons in Y=36
Protons in Y=72-3=36 (atomic number).
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