Question

The phenomenon of radioactivity

• A. is an exothermic change which increases or decreases with temperature
• B. increases on applied pressure
• C. is a nuclear process does not depend upon external factors
• D. none of these

Answer 1

Answer: (C)

is a nuclear process does not depend upon external factors

Radioactivity is natural phenomenon in which particles are emitted from nuclei as a result of nuclear instability and does not depend upon external factors. Because the nucleus experiences the intense conflict between the two strongest forces in nature, there are many nuclear isotopes which are unstable and emit some kind of radiation.