Atoms Ques 27
27. In which of the following systems will the radius of the first orbit $(n=1)$ be minimum?
[2003]
(a) Hydrogen atom
(b) Doubly ionized lithium
(c) Singly ionized helium
(d) Deuterium atom
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Answer:
Correct Answer: 27.(b)
Solution:
- (b) $r \propto \frac{1}{Z} ; Z(=3)$ is maximum for $Li^{2+}$.
BETA
