Structure of At...

The emission spectrum of hydrogen discovered first and the region of the electromagnetic spectrum in which it belongs, respectively are

The Balmer series in atomic hydrogen is observed in the following spectral region

The transition of electron in H atom that will emit maximum energy is

Which of the following is not true in Rutherford's nuclear model of atom

When the electrons of hydrogen atom return to L shell from shells of higher energy, we get a series of lines in the spectrum. This series is called

The kinetic energy of an electron in the second Bohr orbit of a hydrogen atom is [a₀ is Bohr radius]

If the radius of H is 0.54 Å, then what will be the radius of ₃Li²⁺ ?

The work function (ϕ)of some metals are listed below. The number of metals which will show photoelectric effect when light of 300 nm wavelength falls on the metal is

A gas absorbs photon of 355 nm and emits at two wavelengths. If one of the emission is at 680 nm, the other is at