AIPMT PRELIMS2007Chemistry-Atomic Structure
AIPMT PRELIMS 2007 Chemistry Bohr's Model MCQ Question
Type: MCQ-conceptual-Medium-Class 11
The total energy of electron in the ground state of hydrogen atom is –13.6 eV. The kinetic energy of an electron in the first excited state is
A
6.8 eV
B
13.6 eV
C
1.7 eV
D
3.4 eV
Correct Answer
Option D
Detailed Explanation
In the first excited state (n=2), the total energy i.4 eV. The kinetic energy is equal to the absolute value of the total energy, which is 3.4 eV.
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