Atomic Structure Question 198
Question: The ratio of the radii of the three Bohr orbits is
Options:
A) 1:1/2:1/3
B) 1:2:3
C) 1:4:9
D) 1:8:27
Show Answer
Answer:
Correct Answer: C
Solution:
- $ r=\frac{n^{2}a_0}{Z}, $ (when n=1, Z=1) $ r_1=a_0 $
$ r_2=4a_0 $ (when n=2, Z=1) $ r_3=9a_0 $ (when n=3, Z=1)
Hence, ratio is 1:4:9.
