What is the unit of measurement for radioactive activity equal to one nuclear disintegration per second?
A
Gray
B
Becquerel
C
Sievert
D
Rem
Correct Answer: Option B — Becquerel
Explanation:
The Becquerel is the SI unit of radioactivity named after Henri Becquerel defined as one nuclear disintegration per second and replaced the older unit Curie in the SI system.