Nuclear Chemistry Quiz (1st Block)

Which type of radiation has the symbol:

• Alpha

• Beta

• Gamma

• electron

Which type of radiation has the symbol:

• Alpha

• Beta

• Gamma

• proton

Which type of radiation has the symbol:

• Alpha

• Beta

• Gamma

• neutron

In order of most to least penetrating radiation we have

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

Which type of nuclear radiation is being emitted here?

• Alpha
• Beta
• Gamma 
• none

The technetium-99 isotope has a half-life of 6.0 hours. If 100.0 mg were injected into a patient how much remains after 18 hours?

• 33.0 mg
• 12.5 mg
• .33 mg
• 15.8 mg

Balance the following equation:
¹⁴₆C --> ⁰_-1e + ________

• ¹⁴₅B
• ¹⁴₆C
• ¹⁴₇N
• ⁴₂He

What does it mean when an element is radioactive?

• atom emits radiation
• nucei unstable due to uneven p to n ratio
• nuclei changes to become stable
• all of the above

If Thorium-234 undergoes a beta decay, What element will be left in its place?

• Actinium-234
• Thorium-233
• Protactinium-234
• Radium-230

Has the highest penetrating power.  Can penetrate our body.  Even several cm thick of lead or several meters thick of concrete cannot stop all of it.

• Alpha
• Beta
• Gamma