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Main Nuclear Physics OnlineIV_1_2 Nuclear Physics


Natural Radiation - Questions IV.1.2

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1. Make a pie chart to describe the origin of radiation exposure for an average individual in Canada.

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2. What happens to the atomic number and mass number of an element when it undergoes: alpha decay, beta decay, and gamma decay?

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3. With the use of a periodic table determine which elements have the following atomic numbers.
a) 83
  
 
b) 7
  
 
c) 56
  

4. Write the alpha decay equation in which uranium-238 changes to thorium-234.

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5. Write the beta decay equation for thorium-234 as it changes to.

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6. Write the beta decay equation as 212Bi changes to 212Po.

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7. Give the value for x and y in the following decay equations.
a)
x=  y=  
 
b)
x=  y=  
 
c)
x=  y=  

8. Fill in the missing blanks for the following equations.
a)
x=  y=  Z=  
 
b)
x=  y=  Z=  
 
c)
x=  y=  Z=  
 

9. When undergoes alpha decay is produced. This undergoes beta decay and produces which will then undergo beta decay producing . Write the nuclear decay equations associated with this decay series.

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10. Lead - 214 starts a decay series where four beta and two alpha particles are emitted. What is the final stable element? State its atomic number and atomic mass.

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11. Plutonium - 241 starts a decay series where eight alpha and five beta particles are emitted. What is the final stable element? State its atomic number and atomic mass.

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