Question

When an element gives out high energy radiations on its own, the change which takes place is:

विकल्प

• physical change

• chemical change

• nuclear change

• none of these

Answer 1

Nuclear change

Explanation:

When an element emits high-energy radiations on its own, the changes take place inside the nucleus of the atom. Such a spontaneous change of one nucleus into another is a nuclear change, not a physical or chemical change.