The radius of hydrogen atom in the ground state is 0.53 Å. The radius

The Radius Of Hydrogen Atom In The Ground State Is Chemistry Question

The radius of hydrogen atom in the ground state is 0.53 Å. The radius of Li2+ ion (atomic number = 3) in a similar state is

Options

(a) 0.17 Å
(b) 0.265 Å
(c) 0.53 Å
(d) 1.06 Å

Correct Answer:

0.17 Å

Explanation:

State of hydrogen atom (n) = 1(due to ground state). Radius of hydrogen atom (r) = 0.53 Å. Atomic number of Li (Z) = 3. Radius of Li2+ ion = r x n²/Z = 0.53 x 1²/3 = 0.17

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Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Structure of Atom (90)
Subject: Chemistry (2512)

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