Atoms and Nucle...

An electron jumps from the 4^th orbit to 2^nd orbit of hydrogen atom. Given the Rydberg’s constant R = 105 cm^-1, the frequency in hertz of the emitted radiation will be

For the azimuthal quantum number l = 3, the total number of different possible values of the magnetic azimuthal quantum number, m₁, is

In Fig., the energy levels of the hydrogen atom have been shown along with some transitions marked A, B, C. The transitions A, B and C respectively represent

Ionization potential of hydrogen atom is 13.6 eV. Hydrogen atoms in the ground state are exicted by monochromatic radiation of photon energy 12.1 eV. The spectral lines emitted by hydrogen atom according to Bohr’s theory w ill be

In a hypothetical Bohr hydrogen atom, the mass of the electron is doubled. The energy E₀ and radius r₀ of the first orbit will be (a₀ is the Bohr radius).

If the difference of two energy states in an atom is 4eV and h/e = 4 × 10^–15, then the wavelength of photon emitted as a result of the above transition will be

In a given reaction _ZX^A → _Z+1Y^A → _{Z– 1}K^{A – 4} → _{Z– 1}K^{A – 4} radioactive radiations are emitted in the sequence of

When the number of nucleons in nuclei increase, the binding energy per nucleon

Neutron decay in free space is given as follows _on¹ → ₁H¹ + _–1e^o + [ ]. Then the parenthesis represents a