Question

Explain Neil bohr theory

Answer 1

Niels Bohr proposed a theory for the hydrogen atom based on quantum theory that energy is transferred only in certain well defined quantities. Electrons should move around the nucleus but only in prescribed orbits. When jumping from one orbit to another with lower energy, a light quantum is emitted.

Answer 2

$\huge\bigstar\mathfrak{\red{Bohr's\; Theory}}$

Limitations of bohr's theory:-

$\bigstar$It does not explain the spectra of atoms having more than one electron.

$\bigstar$It does not explain the lifting spectral lines into a group of final lines under the influence of magnetic effect and electric field.

$\bigstar$Quantization of angular momentum and idea of stationary States have no theoretical basis.

$\bigstar$The postulate of Bohr's theory that "electrons involved in well defined orbits around the nucleus with well defined velocities" is not acceptable based on Heisenberg's uncertainty principle.

$\bigstar$de Broglie suggested that electrons have dual character. It has particle and wave character. Both treated the electron only as particle.

$\bigstar$It could not consider relativistic variation of mass and energy of an electron in motion.

$\bigstar$Does not provide proper explanation for chemical bonding between the atoms.