Atoms and Nucle...

The transition from the state n = 4 to n = 3 in a hydrogen-like atom results in ultraviolet radiation. Infrared radiation will be obtained in the transition

The electron emitted in beta radiation originates from

An isobar is produced in

Two deutrons each of mass m fuse to form helium resulting in release of energy E. The mass of helium formed is

Wavelength in a spectrum is inversely proportional to

A nucleus with Z = 92 emits the following in a sequence: α, β^–, β^–, α, α, α, α, α, β^–, β^–, α, β⁺, β⁺ and α.
The Z of the resulting nucleus is

Which of the following cannot be emitted by radioactive substances during their decay?

Which of the following atoms has the lowest ionization potential?

The electric potential between a proton and an electron is given by V = V₀ (r/r₀), where r₀ is a constant. Assuming Bohr’s model to be applicable, write variation of r_n with n, n being the principal quantum number?