The Nuclear Physics

What is a beta (-) particle made of?

• One proton

• A helium particle

• One electron

• One proton and one neutron

Which of these processes describes a nuclear fusion reaction?

• A nucleus absorbs energy to produce lighter nuclei.

• A nucleus splits to produce energy and lighter nuclei

• Two nuclei bind together to produce energy and heavier nuclei.

• Two nuclei bind together to produce energy and a lighter 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

Isotopes of the same element have different ____________. 

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

Neutrons ......

• has positive electric charge with equal magnitude to that of an electron.

• has no net electric charge.

• has negative electric charge.

• orbiting the nucleus.

What kind of force holds the nucleus together?

• Strong Nuclear Force

• Weak Nuclear Force

• Gravitational Force

• Electromagnetic Force

What is an alpha particle?

• 1 high speed electron
• 2 protons
• 2 neutrons
• 2 protons + 2 neutrons

Mass number, A is ....

• the number of protons in a nucleus.

• the number of neutrons in a nucleus.

• the number of nucleons in a nucleus.

What is the number of protons in Cesium?

• 55 protons

• 72 protons

• 84 protons

• 106 protons

• 139 protons