Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Which among the following is an incorrect order against the property mentioned?
A
No. of Radial nodes; 
B
Order of energies of orbitals: E 2s(H) 
E 2s(Li) 
E 2s(K)
E 2s(Li) E 2s(K)
C
Order of de Broglies wavelength if their velocities are same: 
D
Order of distance between successive orbits: 
Text Solution
Verified by ExpertsThe correct answer is:
C
According to I st option
No. of radial nodes 
For 3s , Radial nodes 
For 2s , Radial nodes 
For 1s , Radial nodes 
So, order 1 is correct.
According to 
option
( 
has maximum protons & exerts good attractive force on 2s)
According to 
option
Given Order is incorrect, because when velocities are same, then 
has least mass among the given molecules. So, its de-broglie 
will be maximum.
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