Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Which of the following statements regarding the energy of the stationary state is true in the following one - electron systems?
A
for second orbit of 
ion B
for third orbit of 
ion C
for second orbit of H atom. D
for first orbit of 
ion
Text Solution
Verified by ExpertsThe correct answer is:
B
The energy of an electron in the 
stationary state of a one-electron system is given by the Bohr's formula:
where 
is the atomic number and 
is the principal quantum number.
For option : Second orbit of 
. (Incorrect sign in option)
For option : Third orbit of 
. (Correct)
For option : Second orbit of 
atom ( 
)
. (Incorrect value)
For option : First orbit of 
. (Incorrect sign in option)
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