in a hydrogen atom if energy of an electron in ground state

In a hydrogen atom, if energy of an electron in ground state is 13.6. $$ev,$$ then that in the 2^nd excited state is

A. 1.51 $$eV$$

B. 3.4 $$eV$$

C. 6.04 $$eV$$

D. 13.6 $$eV$$

Answer : 1.51 $$eV$$

Solution :
2^nd excited state will be the 3^rd energy level.
$${E_n} = \frac{{13.6}}{{{n^2}}}eV\,{\text{or}}\,E = \frac{{13.6}}{9}eV = 1.51\,eV$$

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Physical Chemistry >> Atomic Structure

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A. 34

B. 36

C. 38

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B. protons

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In a hydrogen atom, if energy of an electron in ground state is 13.6. $$ev,$$ then that in the 2^nd excited state is

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Physical Chemistry >> Atomic Structure

The number of neutrons in dipositive zinc ion with mass number 70 is

Rutherford’s experiment on scattering of $$a$$ -particles showed for the first time that the atom has

Any $$p-$$orbital can accommodate upto

The principal quantum number of an atom is related to the

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Atomic Structure

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In a hydrogen atom, if energy of an electron in ground state is 13.6. $$ev,$$ then that in the 2nd excited state is

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The number of neutrons in dipositive zinc ion with mass number 70 is

Rutherford’s experiment on scattering of $$a$$ -particles showed for the first time that the atom has

Any $$p-$$orbital can accommodate upto

The principal quantum number of an atom is related to the

Practice More Releted MCQ Question on Atomic Structure

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In a hydrogen atom, if energy of an electron in ground state is 13.6. $$ev,$$ then that in the 2^nd excited state is

Releted MCQ Question on
Physical Chemistry >> Atomic Structure

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