List of top Chemistry Questions on Bohr's model of hydrogen atom asked in AP EAPCET

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:

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:

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

A hydrogen atom is excited to level \(n\) where its potential energy is found to be \(-1.088\, \text{eV}\). The magnitude of \(n\) is:

The radius of third orbit of He\(^+\) is \( Y \, \text{Å} \). The radius of second orbit of Li\(^{2+}\) (in Å) is:

A radiation of energy 11.0 eV is irradiated on gaseous hydrogen atoms at room temperature. Identify the energy level to which electron of hydrogen atom can be excited:

The shortest wavelength in the Lyman series of hydrogen \([R_H = 1.097 \times 10^7~\text{m}^{-1}]\) is:

The value of Rydberg constant in J is:

The energy of the hydrogen atom in its ground state (in eV) is \(-x\). The energy of \(He^+\) ion in its fourth orbit (in eV) is:

The following parameter is same for all hydrogen like atoms and ions in their ground state.