Chapter 30, Problem 5STP

To determine

To Choose: The correct option.

Answer to Problem 5STP

Option $A$ is correct option.

Explanation of Solution

Introduction:

Carbon $\left(C14\right)$ is formed when the gamma rays $\left(\gamma \right)$ enter the atmosphere of earth and they interact with atmospheric atoms and divides them to create the free neutrons.

Neutrons then react with nitrogen $N$ to form carbon $C$ and proton as a byproduct.

The reaction when neutron reacts with nitrogen $N$ forms carbon $C$ and by product is proton. By this process there is formation of $C$ which is a radioactive isotope in the atmosphere. Reaction is written as,

  $neutron+N\to C+H$

Conclusion:

Thus, option $A$ is the correct option.