What is equivalent to 1 Curie in terms of disintegrations per second?

One Curie is defined as the amount of a radioactive substance that undergoes 3.7 × 10^10 disintegrations per second. This definition was established based on the activity of 1 gram of radium-226, which was historically used as a standard for measuring radioactivity.

In your query, the correct choice states that 1 Curie is equivalent to 37 billion disintegrations per second, which accurately reflects the conversion from Curie to disintegrations per second, demonstrating that it is indeed equivalent to 37 billion disintegrations per second or 3.7 × 10^10.

Understanding this unit conversion is essential in the context of radiation safety and mitigation, as professionals working in these fields often have to assess the health risks associated with different levels of radioactivity. Being familiar with units like Curie and their equivalents helps in communicating these risks clearly and effectively within the regulatory framework.