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Bohr model is a system consisting of sma...

Bohr model is a system consisting of small, dense nucleus surrounded by orbiting electrons. The electrons travel is defined circular orbits around the nuclues which orbital angular moementum is an integral multiple of `h/(2pi)`. While rotating in allowed orbits (stationary orbits) the electron does not radiate energy. electromagnetic radiations are emitted when the electron jumps from a higher orbit `(E_(ni))` to a lower orbit `(E_(nf))`.
The total energy of the electron in an atom is negative. It suggests that

A

energy is emitted if elelctron is to be removed from the atom.

B

energy has to be supplied if the electron is to be removed from the atom.

C

electron cannot be removed from the atom.

D

Energy of the electron is zero.

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