Question

How was Bohr's atomic model similar to Rutherford's model? A. It assigned energy levels to electrons. B. It described electron positioning in terms of the electron cloud model. C. It described how electrons gain or lose energy. D. It described a nucleus surrounded by a large volume of space.

Answer 1

There are four options in the question. We are asked to calculate the correct option which is similar to both Bohr's and Rutherford's atomic model.

The first option is wrong. It is so because energy value of an electron in a particular orbit was assigned by Bohr. Rutherford's atomic model simply tells about the  motion of electrons in various orbits around the nucleus which was also corrected by Bohr.

The second option is also wrong. Bohr had not described electronic positioning through electron cloud model.

As per Bohr's theory an electron will absorb energy when it will jump from ground state to excited state. The electron will emit energy when it will jump from excited state to ground state. Rutherford's theory had not described the gain and loss of energy of electrons .So this option is also wrong.

Both the theories have similarity in one aspect.Both the theories described the nucleus surrounded by large volume of space. There are two parts inside an atom .One is called nuclear part which contains protons and neutrons, and the second one is called extra nuclear part which contains electrons in various orbits. Most of the space in extra nuclear part is empty.

Hence option D is the correct answer.

Answer 2

D. It described a nucleus surrounded by a large volume of space.