Gr 9_Nuclear Radiation

What is the charge of alpha particles?

• -1

• +2

• 0

• +1

Which type of radiation is made up of two protons and two neutrons?

• Neutrons

• Beta particles

• Gamma rays

• Alpha particles

What is the stopping material for beta particles?

• Concrete

• Aluminium

• Air

• Lead

What is the nature of gamma rays?

• Waves

• Particles

• Neutrons

• Protons

Which type of radiation can easily knock electrons off any atoms they collide with?

• Neutrons

• Alpha particles

• Beta particles

• Gamma rays

What is the charge of beta particles?

• -1

• +2

• 0

• +1

What is the stopping material for gamma rays?

• Lead

• Aluminium

• Concrete

• Air

What is emitted when a nucleus contains too many neutrons?

• Alpha particles

• Beta particles

• Gamma rays

• Neutrons

What is the stopping material for alpha particles?

• Aluminium

• Air

• Lead

• Concrete

Arrange in order of increasing ability to penetrate matter.

• Beta, gamma, alpha

• Gamma, beta, alpha

• Alpha, gamma, beta

• Alpha, beta, gamma