Bohr's Model of an atom

Q.

Draw a sketch of Bohr’s model of an atom with three shells.

Q. Which fundamental particle is not present in the nucleus of a hydrogen atom?

1. Protons
2. Photons
3. Neutrons
4. Electrons

Q.

Discuss in brief the Bohrs model of atom.

Q. According to Bohr's model of the atom, 'while revolving in discrete orbits the electrons radiate energy.'

1. True
2. False

Q.

Bohr's Model of the atom included idea(s) like:

1. Electrons in atom stay in orbits

2. The electrons can only revolve in certain orbits at certain distance from the nucleus

3. When electrons gain or lose energy they jump from one orbit to another

4. Most of the atom is empty.