Radioactive Decay

What is meant by radioactive decay?

• Process in which a stable nucleas becomes more stable by emitting radioactive radiation.

• Process in which an unstable nucleas becomes more stable by emitting radioactive radiation.

Which type of radioactive decay involves with the release of an alpha particle?

• Alpha Decay

• Beta Decay

• Gamma Decay

• None of the above

The following equation represent the decay of americium-241 became nucleas of neptunium-237 by emitting a single particle. Determine the values of A and Z.

• A=2 A=4

• A=4 Z=4

• A=2 Z=2

• A=4 Z=2

Which type of radioactive decay involves the emission of a positron particle?

• Alpha Decay

• Beta Decay

• Gamma Decay

• None of the above

Gamma rays is known as _______

• Helium

• Half-life

• Fast moving electron

• High-frequency electromagnetic wave