_________ is the element used to produce nuclear energy

Palladium
Strontium
Uranium
Rhodium

The correct answer is C. Uranium.

Uranium is a radioactive element that is used to produce nuclear energy. It is found in nature and can be mined. Uranium is used in nuclear power plants to generate electricity. It is also used in nuclear weapons.

Palladium is a non-radioactive element that is used in jewelry and electronics. Strontium is a non-radioactive element that is used in fireworks and toothpaste. Rhodium is a non-radioactive element that is used in jewelry and catalytic converters.

Uranium is the only element on the list that is radioactive and can be used to produce nuclear energy.