Atomic Physics

The energy levels of certain atom are represented in the following figure. During the transition from 2E to E level, a photon of wavelength $\lambda$ is emitted. The wavelength of photon produced during transition from…

The ratio of angular frequency ($\omega$) of an electron to the total energy (E) of an electron in the first orbit of hydrogen atom is ($h$ is the Plank's constant)

An electron of mass '$m_e$' and charge '$e$' revolving around the nucleus in $n^{th}$ orbit has orbital magnetic moment $\dfrac{enh}{4\pi m_e}$ which is equal to Bohr Magneton, the orbit number in which electron should…

A hydrogen atom in its ground state is irradiated by light of wavelength $1026\ \text{\AA}$. The electron gets excited to higher energy state $n$. Given the ground state energy is $-13.6\ \text{eV}$ and $hc = 1242\…

In the Bohr model, an electron moves in circular orbit around the proton. Considering an orbiting elecrton to be a circular current loop, the magnetic moment of the hydrogen atom, when the electron is in n$^{th}$ state,…

The radius of the orbit of an electron in a hydrogen like atom is $4.5a_0$, where $a_0$ is the Bohr radius. Its orbital angular momentum is $\dfrac{3h}{2\pi}$. It is given than h is Planck's constant and R is Rydberg's…

The ratio of ionization energy of a hydrogen atom in fifth excited state to second excited state is

The ratio between the areas of Bohr's first three orbits of the hydrogen atom are

When a hydrogen atom is raised from ground energy level to excited energy level, then

Some energy levels of a molecule are shown in the figure with their wavelengths of transitions. Then:

The radius of inner most orbit of hydrogen atom is $5.3\times\,10^{-11}m$. What is the radius of third allowed orbit of hydrogen atom?

The radius of fifth orbit of$\mathrm{Li}^{++}$is$\mathrm{_______}\times\,10^{-12}m.$Take: radius of hydrogen atom$=0.51\overset{\circ\,}{A}$