List of top Chemistry Questions on Bohr's model of hydrogen atom

What is the energy of an electron in a hydrogen atom whose angular momentum is \(h/\pi\) ?

Calculate the energy associated with an electron in the first orbit of hydrogen atom?

According to Bohr's model of the hydrogen atom, the ratio of the kinetic energy to the total energy of an electron in \(3^{\text{rd}}\) excited state is?

The Bohr orbit radius for the hydrogen atom (n = 1) is approximately 0.530 \AA. The radius for the first excited state (n = 2) orbit is (in \AA)

The degeneracy of a hydrogen atom whose energy equals \(-R_H/16\) is:

Ionisation energy of H-atom is \(13.6 \text{ eV}\). The wavelength of the spectral line emitted when an electron in \(\text{Be}^{3+}\) comes from \(5^{\text{th}}\) energy level to \(2^{\text{nd}}\) energy level is:

If the velocity of an electron in the first Bohr's orbit of H-atom is x $ms^{-1}$, then the velocity (in $ms^{-1}$) of an electron in the fourth Bohr's orbit of the same atom is:

The difference between the radii of M and N shells of $He^+$ is $\Delta R_1$(nm). The difference between the radii of L and N shells of $Li^{2+}$ is $\Delta R_2$(nm). The ratio of $\Delta R_1$ to $\Delta R_2$ is:

In hydrogen atom, electron is present in $n_x$ state. The energy of Lyman spectral line of hydrogen spectrum originated from $n_x$ state is $1.635 \times 10^{-18}\text{ J}$. What is the approximate energy (in J) required to excite this electron from $n_x$ state to $(n_x+1)$ state?

According to Bohr's model, the angular momentum of an electron in a stable orbit is an integral multiple of

In H atom, electron is present in $n_x$ state. The angular momentum of this electron is $1.051 \times 10^{-34}\text{ Js}$. What is the energy (in J) required to excite this electron from $n_x$ state to $(n_x+1)$ state? ($h = 6.6 \times 10^{-34}\text{ Js}$; $\pi = 3.14$)

Find the energy of third stationary orbit of Bohr's model of hydrogen atom if the energy of ground state is \(-E\) J

What is the energy of an electron in a hydrogen atom in a stationary state corresponding to n = 2 ?

If the energy of an electron in the first Bohr orbit of the H-atom is \(-2.18\times 10^{-18}\) J then the energy of the electron in the second orbit will be

According to Bohr's theory the radius of the second stationary state of hydrogen atom is

If \(\lambda_{Li^{2+}}\) and \(\lambda_D\) represent the wavelengths related to first line (shortest line) of Lyman series of line spectrum of \(Li^{2+}\) and \(^2_1H\) respectively, then \(\lambda_{Li^{2+}} : \lambda_D\) is

X\(^{a+}\) and Y\(^{b+}\) are hydrogen-like species. The wavelength of light absorbed during the transition between the states with principal quantum numbers \(n = 1\) and \(n = 2\) of X\(^{a+}\) is \(\lambda\). The wavelength of light absorbed during the transition between the states with principal quantum numbers \(n = 2\) and \(n = 4\) of Y\(^{b+}\) is \(9\lambda\). The lowest possible value of \((a+b)\) is _______.

The frequency of photon which is emitted during a transition of electron of $\text{He}^+$ ion from fifth energy level to third energy level will be:

A hydrogen atom absorbs energy and rises to the $n = 3$ state from its ground state $n = 1$. If the potential energy of the atom at its ground state is $-22\text{ eV}$, find the wavelength emitted by it when it returns to its ground state: (Take Planck's constant $= 6 \times 10^{-34}\text{ J s}$, speed of light $= 3 \times 10^8\text{ m s}^{-1}$)}

The wavelength of the radiation emitted, when an electron falls from infinity to stationary state 1, would be (Rydberg constant = 1.097 × 10⁷ m⁻¹)

The angular momentum and the energy of the electron in the second Bohr’s orbit are respectively

The transition energy of the electron from higher to lower level is $3.0\times10^{-19},J$. The wavelength of the emitted light is about ($h=6.625\times10^{-34},Js,\ c=3\times10^8,ms^{-1}$)

The energy of the electron in third excited state of the hydrogen atom is

Velocity of \( \text{I}^{\text{st}} \) orbit of hydrogen according to Bohr theory is \( v \), then what is the velocity of \( 3^{\text{rd}} \) orbit of hydrogen?

Calculate the radius of the second orbit of \(He^{+}\).