question_answer

\[a\xrightarrow{-\beta poarticle}B\xrightarrow{-\alpha paritcle}C\xrightarrow{-\beta \,particle}D\] 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.