Question

question 7 of 30 which describes the forces in an unstable nucleus? a. the electrostatic force is greater than the strong nuclear force. b. the weak nuclear force is greater than the strong nuclear force. c. the electrostatic force is greater than the weak nuclear force. d. the strong nuclear force is greater than the electrostatic force.

Explanation:

In a nucleus, protons have positive charges, so electrostatic repulsion (Coulomb force) acts between them. The strong nuclear force holds protons and neutrons together. In a stable nucleus, strong nuclear force > electrostatic force. For an unstable nucleus, the electrostatic force (repulsive between protons) overcomes the strong nuclear force (attractive). Option B is incorrect as weak nuclear force is involved in decay, not directly comparing to strong force for instability. Option C compares electrostatic and weak force, not relevant for nucleus stability. Option D is for stable nuclei. So A is correct.

Answer:

A. The electrostatic force is greater than the strong nuclear force.