Vocabulary
This word describes two samples of the same element with different atomic masses. Some of them happen to be radioactive too.
isotopes
What type of radioactive particle has the least penetrating power?
alpha particle
7.13 seconds
What is the decay mode of N-19
positron
Which radioisotope is used to determine the age of once living organic materials? Be specific about the radioisotope
Carbon-14
This word describes the time it takes for a fraction of a sample to radioactively decay
half life
What type of radioactive particle is deflected towards a positively charged plate?
beta particle
Which element has a greater half life, Radium-226 or Radon-222?
Radium-226
Which of the following radioactive particles will go through beta decay, Neon-16 or Nitrogen-19?
Nitrogen-16
Which radioisotope is used to determine the age of geographic landforms?
U-238
This process is when an two elements combine to form a larger element through a nuclear process
nuclear fusion
gamma particle
Which element has a faster rate of decay, Potassium-37 or Potassium-42
Potassium-37
Which two of the following substances have the same decay mode? K-37, K-42, H-3, Ra-226?
H-3 and K-42
Which radioisotope is used to monitor the functionality of a human thyroid?
This term describes the nuclear process when an element radioactively decays to produce a new daughter isotope
transmutation
Which radioactive particle is produced when a neutron changes into a proton? 10n --> 11p
beta particle
If 14C is allowed to decay for 17,145 years, what fraction of the substance remains?
1/8
What is the daughter isotope of the radioactive decay of P-32?
S-32
Which radioisotope is used in smoke detectors?
Am-241
This term describes the mass that is converted to energy in a nuclear reaction
mass defect
Which radioactive particle is produced when a proton changes into a neutron? 11p --> 10n
positron
If a 100g sample of 3H is allowed to decay to 6.25g, what is the total time that the substance has been decaying?
49.24 y
What element goes through positron decay to produce the daughter isotope K-37?
Ca-37
Which radioisotope is used in cancer treatment?
Co-60