Chapter 20, Problem 33R

To determine

To Choose: The correct option.

Answer to Problem 33R

Option D

Explanation of Solution

Introduction:

Isotopes have different ratio of protons and neutrons.Isotopes of an element have same atomic number and different mass number. Ratio of protons and neutrons are different.

Option (A) is incorrect because if forces among the particles are unbalanced, atom is said to be unstable.Option (b) is incorrect because synthetic atom is man-made and can have any number proton to neutron ratio. And option (c) is incorrect because radioactivity is not the term that describes about the atoms with same number of protons but different number of neutrons.

Conclusion:

Thus, option D is correct.