\[a\xrightarrow{-\beta poarticle}B\xrightarrow{-\alpha paritcle}C\xrightarrow{-\beta \,particle}D\] In the above conversion, which one of the following is not true?
A) A and D are isotopes
B) B and C are isodiaphers
C) C and D are isobars
D) A and B are isotopes
Correct Answer:
D
Solution :
In the above process A and B are not isotopes as isotopes have same atomic number but different mass number.