Created by morgan brazier
over 5 years ago
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Question | Answer |
What was the Rutherford experiment | the gold foil experiment |
What did Rutherford expect from the experiment and what actually happened | Rutherford expected all the positively charged alpha particles to go straight through some refracted and some reflected |
what is the source of background radiation | rock soil gives off radon gas |
why is gamma radiation used to sterilize food? | it kills micro organisms |
why is gamma radiation used to treat cancer | it destroys damaged cells |
how does alpha radiation work in fire alarm | alpha radiation ionises the air within |
what safety measures are put in place for handling radioactive substances | -Hazmat suits -Tongues -gloves -lead lining |
what stops alpha particles | paper |
what stops beta particles | aluminium |
what stops gamma particles | thick lead |
what is an isotope | elements with different numbers of neutrons |
what is half life | how long it takes a substance to half in quantity |
what is an ion | charged atom |
what is ionising ? | radiation causes ions to form |
what is random decay? | when it is impossible to predict when an atom will decay |
what is spontaneous decay? | impossible to influence decay date |
what is a becquerel? | unit of measurement of radiation |
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