Question 573: Atoms & Nuclei

Question

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

Accepted Answer

E
n
= $$ - {{13.6} \over {{n^2}}}$$
E
1
= -13.6 eV
E
2
= $$ - {{13.6} \over {{2^2}}}$$ = -3.4 eV
Kinetic energy of an electron in the first excited
state is
K = Ã¢ÂÂE
2
= 3.4 eV.

Answer

6.8 eV

Answer

13.6 eV

Answer

1.7 eV

Answer

3.4 eV.

Atoms & Nuclei

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

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