Which of the following statements about the atom is/are correct?

I. Energy is needed to remove electrons from an atom

II. Particles in the nucleus of an atom are bound together by strong forces.

III. A large amount of energy is required to separate the particles in the nucleus of an atom.

IV. When the nucleus of a uranium atom is split, the energy released accounts for the difference in the masses of the products and the parent nucleus

A. I only
B. I and II only
C. I and III only
D. II and IV only
E. I, II, III and IV

Correct Answer:

Option D – II and IV only