1.

Describe the main features of Bohr'smodel of an atom. Draw a neat and labelled diagram of energy levels.

Answer»

Solution :Niels Bohr was the first to show the arrangement of electrons in an atom. Bohr.s atomic model :
(1) The atom consists of a small nucleus at the CENTRE.
(2) The whole mass of the atom is concentrated in the nucleus.
(3)The electrons of the atom revolve round the nucleus in circular paths known as ORBITS or shells.
The shells are DESIGNATED as K, L, M, N, etc. or numbered n= 1, 2, 3, 4, etc.
(4) The orbits are known as energy levels.
(5) Each orbit is associated with a fixed amount of energy.
(6) Electrons move in these orbits without losing or GAINING any energy.


Discussion

No Comment Found

Related InterviewSolutions