Nucleus: Practice Problem & Solution

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Nucleus. Understanding the underlying formula is key to arriving at the correct answer below:

Curie (Ci) is a non-SI unit of radioactivity, originally defined as the activity of 1 gram of radium-226 ($3.7 \times 10^{10}$ decays per second).