STANDARDChemistry-Atomic Structure

STANDARD Chemistry Bohr's Model MCQ Question

Type: MCQ-numerical-Medium-Class 11

In which of the following systems will the radius of the first orbit (n = 1) be minimum?

A

doubly ionized lithium

B

singly ionized helium

C

deuterium atom

D

hydrogen atom

Correct Answer

Option A

Detailed Explanation

Radius of first orbit, r1Zr \propto \frac{1}{Z}. For doubly ionized lithium, Z (3) will be maximum, hence for doubly ionized lithium, r will be minimum.

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