Nuclear Physics And Radioactivity Question 309
Question: After $ 1\alpha $ and $ 2\beta $ emissions [CBSE PMT 1999]
Options:
A) Mass number reduces by 3
B) Mass number reduces by 4
C) Mass number reduces by 6
D) Atomic number remains unchanged
Show Answer
Answer:
Correct Answer: B
Solution:
$ _{Z}X^{A} \xrightarrow{\alpha} _{Z-2}{Y}^{A-4} \xrightarrow{2\beta } _{Z}{X}^{A-4} $
BETA
