Radioactive Decay

What is alpha particle?

• Fast-moving electron

• A helium (He) nucleus which consists of two protons and two neutrons

• high-frequency electromagnetic wave

• Gamma Decay

• Alpha Decay

• Beta Decay

Diagram shows radioactive decay process. Identify the radioactive radiation produced?

• Alpha particle

• Beta particle

• Gamma Ray

Diagram shows a radioactive radiation. Which statement is true about the radiation? 

• high-frequency electromagnetic wave

• has positive charge

• has negative charge

This equation shows..

• Alpha Decay

• Beta Decay

• Gamma Ray

The diagram shows the equation for radioactive decay. Identify X and Y in the decay.

• X: alpha particle, Y: beta particle

• X: alpha particle, Y: gamma ray

• X: beta particle, Y: gamma ray

The radiation given out consists of...

• two α-particles and gamma ray

• two β-particle and gamma ray

• two α-particles and one β-particle