Nuclear Physics And Radioactivity Question 265
Question: Half-life of $ Bi^{210} $ is 5 days. If we start with 50,000 atoms of this isotope, the number of atoms left over after 10 days is [MP PET 1993]
Options:
A) 5,000
B) 25,000
C) 12,500
D) 20,000
Show Answer
Answer:
Correct Answer: C
Solution:
$ {Z}X^{A}\xrightarrow{{-1}{{\beta }^{0}}}{,{Z+1}}Y^{A}\xrightarrow{2He^{4}(\alpha )} $ $ {,{Z-1}}{{K}^{A-4}}\xrightarrow{{0}{{\gamma }^{0}}}{,{Z-1}}{{K}^{A-4}} $
BETA
