Bohr's Model

Niels Bohr proposed a model of the atom in which the ______ was able to occupy only certain orbits around the nucleus

• Protons

• Electrons

• Neutrons

• Cations

This model was based on which theory?

• Avogadro's Law

• Bell's Theorem

• M- Theory

• Quantum Theory

The orbits or shell are represented by ____ or _____

• N and 1

• Letters and Numbers

• Shells and Numbers

The mass of an atom is therefore given by the sum of the masses of ____ and _____ present in the nucleus

• Electrons and Neutrons

• Protons and Electrons

• Protons and Neutrons

• None of them

Which symbols are used to represent different Bohr’s orbits?

• A,N,M,K

• K,L,M,N

• L,M,N,O

• K,L,N,O

What are not accommodated in the given shell ,unless the inner shells are filled in a step wise manner

• Protons

• Electrons

• Neutrons

• All of the above

What is the maximum number of electrons that can be accommodated in the outermost orbit

• 9

• 7

• 8

• 6

While revolving in discrete orbits the electrons do not radiate energy.

• True

• False

Which of these are true.

• Each orbit is associated with a fixed amount of energy. The lowest energy level of the electron is called the ground state.  Therefore, these orbits are also known as energy levels or energy shells.

• The nucleus contains all the protons and neutrons of the atom.

• The atom consists of a small positively charged nucleus at its center and surrounded by negatively charged electrons in a definite circular path.

• All of the Above