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