Which element is used in nuclear reactors as fuel due to its fissile properties?
A
Polonium
B
Thorium
C
Uranium
D
Radium
Correct Answer: Option C — Uranium
Explanation:
Uranium, particularly the isotope U-235, is widely used as nuclear fuel due to its fissile properties, meaning its nucleus can be split by neutron bombardment, releasing enormous amounts of energy.