CHEM: Unit 3 Nuclear Part 1

What is the major source of background radiation?

• Uranium-235
• Plutonium-239
• Radon-222
• Hydrogen-3

In order of most to least penetrating radiation we have

• Alpha , Beta,  Gamma
• Beta , Gamma , Alpha
• Gamma, Beta, Alpha
• Gamma, Alpha, Beta

Mass number of atom shown is

• 3
• 6
• 9
• 12

The atomic number Z of an atom is the number of

• protons only
• protons and neutrons
• nucleons
• neutrons only

An atom consists of nucleus containing

• Proteins and  nucleons
• Protons only
• Nucleons
• Neutrons only

Has a mass of 4 and a charge of +2

• Alpha
• Beta
• Gamma

Which type of nuclear radiation is being emitted here?

• Alpha
• beta
• gamma 
• none

Tags

NGSS.HS-PS1-8

Which type of radioactive decay gives off energy only?

• alpha
• beta
• gamma

Tags

NGSS.HS-PS1-8

Complete the nuclear equation and determine the type of decay that is occurring in this reaction. 

• alpha
• beta
• gamma
• none

The splitting of a nucleus into smaller nuclei is

• fusion
• fission
• half-life
• gamma radiation