(A) For a hydrogen-like atom,the energy of the $n^{th}$ orbit is given by $E_n = -13.6 \times \frac{Z^2}{n^2} \text{ eV}$.As $n$ increases,$E_n$ becom

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(A) For a hydrogen-like atom,the energy of the $n^{th}$ orbit is given by $E_n = -13.6 \times \frac{Z^2}{n^2} \text{ eV}$.As $n$ increases,$E_n$ becomes less negative,meaning $E_1 Therefore,the statement $E_1 > E_2 > E_3$ is incorrect.Potential energy $(PE)$ is given by $PE_n = -27.2 \times \frac{Z^2}{n^2} \text{ eV}$,so $PE_1 Kinetic energy $(KE)$ is given by $KE_n = 13.6 \times \frac{Z^2}{n^2} \text{ eV}$,so $KE_1 > KE_2 > KE_3$ is correct.

Class 11 Chemistry Structure of Atom Atomic models and Planck's quantum theory

Medium

Which of the following orders is $NOT$ correct for the $1^{st}$,$2^{nd}$,and $3^{rd}$ orbits of a hydrogen-like atom?

A
$E_1 > E_2 > E_3$
B
$(PE)_1 < (PE)_2 < (PE)_3$
C
$(KE)_1 > (KE)_2 > (KE)_3$
D
$(KE)_1 > (KE)_2 > (KE)_3$ and $(PE)_1 < (PE)_2 < (PE)_3$

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Class 11

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Structure of Atom

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Atomic models and Planck's quantum theory

The approximate ratio of the speed of light in vacuum to that of an electron in the first Bohr orbit of hydrogen atom is (in $: 1$)

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The masses of photons corresponding to the first lines of Lyman and Balmer series of the spectrum of hydrogen atom are in the ratio of

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How did Niels Bohr obtain detailed information regarding the structure of atoms and molecules?

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The radii of two of the first four Bohr’s orbits of the hydrogen atom are in the ratio $1 : 4$. The energy difference between them may be

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An electron revolves in an orbit around a stationary nucleus with atomic number $Z = 5$. The energy required to excite the electron from the $3^{rd}$ orbit to the $4^{th}$ orbit is .......... $eV$.

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Which of the following orders is $NOT$ correct for the $1^{st}$,$2^{nd}$,and $3^{rd}$ orbits of a hydrogen-like atom?

Similar Questions

The approximate ratio of the speed of light in vacuum to that of an electron in the first Bohr orbit of hydrogen atom is (in $: 1$)

The masses of photons corresponding to the first lines of Lyman and Balmer series of the spectrum of hydrogen atom are in the ratio of

How did Niels Bohr obtain detailed information regarding the structure of atoms and molecules?

The radii of two of the first four Bohr’s orbits of the hydrogen atom are in the ratio $1 : 4$. The energy difference between them may be

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