Nuclear chemistry is the study of the breakup of unstable nuclei, which results in the emission of radiation and energy. There are three types of radiation; alpha (α), beta (β) and gamma (γ).
Which type of radiation is positively charged?
What determines how radioactive a nucleus will be?
The proton:electron ratio
The proton:neutron ratio
The neutron:electron ratio
What would the penetrative limit of gamma (γ) radiation be?
A few centimetres of air
A sheet of aluminium foil
Which type of radiation can be represented by the particle shown?
What type of particle does X represent in the equation shown?
Which of the following would reduce the half-life of a radioisotope?
The mass of the radioisotope present
The temperature the radioisotope is stored at
Nothing affects the half-life of a radioisotope
Which radioisotope is used to date the age of once living materials?
After 24 days, the mass of a radioisotope was found to be one quarter its original mass. What is the half-life of the radioisotope?
A medical radioisotope has a half life of 1.5 hours. Its radioactivity was recorded as 10,000 counts min-1 at 9am. What will the count rate be by 3pm?
625 counts min-1
1250 counts min-1
2500 counts min-1