Structure of At...

Isobars are the atoms with

When an electric discharge is passed through gaseous hydrogen, the H₂ molecules dissociate and the energetically excited hydrogen atoms produced emit electromagnetic radiation of discrete frequencies. The hydrogen spectrum consists of

A 100-watt bulb emits light having wavelength 5 x 10^-7 m. Calculate the number of photons emitted per second by the bulb.

Emission spectrum of a material results from the material's (atom or molecules)

A gas absorbs a photon having wavelength 400 nm and then re-emits two photons. If the wavelength of one photon is 800 nm, then the wavelength of the second photon will be:

The wave number of H_β line in the Paschen series of hydrogen emission spectrum is:

Absorption spectrum, seen as dark lines in an otherwise continuous spectrum, for a given material results from the material's (atom or molecules)

The relation between the energies of two different radiations whose wavelengths are 800 nm and 400 nm is:

The total energy of an electron in the first excited state of the hydrogen atom is about −3.4 eV. What is the kinetic energy of the electron in this state?