nuclear physics assessment foundation

What is a beta particle made of?

• One proton

• A helium particle

• One electron

• One proton and one neutron

Of the main types of radiation emitted from naturally radioactive isotopes, which is the hardest to block?

• Alpha deca

• Gamma Decay

• Beta decay

• They are all blocked using the same method

What is emitted during Beta Radiation?

• A high-energy Electron.
• Protons.
• Neutrons.
• Nuclei

What is emitted during Alpha Radiation?

• A helium nuclei.
• A helium atom
• Gamma Rays.
• Positrons

Which type of nuclear radiation is being emitted here?

• Alpha
• beta
• gamma 
• none

When does radioactive decay occur?

• When the nucleus of an isotope is unstable
• When the nucleus of an isotope is stable
• When the electrons of an isotope are spinning
• When the electrons of an isotope are shared with another isotope

Isotopes of the same element have different ____________. 

•  numbers of protons  
• numbers of electrons
•  symbols 
• numbers of neutrons

What type of decay that is occurring in this reaction.

• alpha

• beta

• gamma

• none

Neutrons ......

• have positive electric charge

• have no electric charge.

• have negative electric charge.

• orbit the nucleus.

What is the number of neutrons in Cesium?

• 55 neutrons

• 76 neutrons

• 84 neutrons

• 106 neutrons

• 139 neutrons