Who was credited with discovering the hydrogen isotope, or heavy hydrogen, for which he later received the 1934 Nobel Prize in Chemistry?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Harold C Urey.
Harold C. Urey, an American chemist, is credited with discovering the hydrogen isotope known as deuterium, or heavy hydrogen, in 1931.
He identified it through a method involving the distillation of liquid hydrogen, which allowed him to isolate the heavier isotope.
For this groundbreaking work, Urey was awarded the Nobel Prize in Chemistry in 1934. His discovery significantly advanced the understanding of isotopes and nuclear chemistry, influencing both scientific research and practical applications, including nuclear energy and medicine.