Atoms And Nuclei Question 129
Question: In which of the following systems will the radius of the first orbit $ (n=1) $ be minimum [Kerala PET 2002; CBSE PMT 2003]
Options:
A) Single ionized helium
B) Deuterium atom
C) Hydrogen atom
D) Doubly ionized lithium
Show Answer
Answer:
Correct Answer: D
Solution:
$ r\propto \frac{1}{Z}, $ for double ionized lithium $ Z(=3) $ will be maximum. So r will be minimum
