Question

Which of the following statements about radioactivity is/are true ?

• A. It involves outer electrons activity
• B. The radioactivity of an element is not affected by any other element compounded by it
• C. It is not affected by temperature or pressure
• D. It is an exothermic process

Answer 1

Answer: (B), (C), (D)

The emission of ionizing radiation(exothermic) or particles caused by the spontaneous disintegration of atomic nuclei is called radioactivity.
It is not affected by temperature or pressure.
It is an exothermic process.
The radioactivity of an element is not affected by any other element compounded by it.