Answer:
A:Electrons in Bohr's model are placed in orbits of different energy levels.
Explanation:
Postulates of Bohr's model
1.Electrons revolve around the nucleus in definite circular orbits and these orbits designated by the letter K,L,M..
2.As long as the electrons revolve in particular orbit then they can neither gain nor loose energy.Such orbits are called stationary orbits.
3.When an electron jump from lower to higher orbit then it absorb energy and when an electron jump from high to lower then it release energy in the form of radiations.
4.The angular momentum of an electron is integral multiple of [tex]\frac{h}{2\pi}[/tex].
But Rutherford model postulates
1.An atom consist of nucleus containing the entire positive charge.The entire mass of an atom concentrated in the nucleus.
2.Size of nucleus is very small as compared to whole atom size.
3.An atom as a whole is electrically neutral with electrons revolves around the nucleus in various orbits.
Hence, Electrons in Bohr's model are placed in orbits of different energy levels is different postulates of Bohr's model from Rutherford model.
Because Rutherford does not tell about energy levels in which electron revolves. He only said that electrons revolves in various orbits.
Answer: A:Electrons in Bohr's model are placed in orbits of different energy levels.
