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13 Cards in this Set
- Front
- Back
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Electromagnetic radiation |
Radiation produced by vibrating charged particles |
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The activity of a radioactive sample is defined as..? |
The number of particles it emmitts in a second. Measured in becquerels(Bq) |
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What is half life |
The time for half of the mass of the original radioactive isotope to decay to itd daughter products. |
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What are isotopes |
Atoms of the same element with different numbers of neutrons. |
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What is radioactivity |
Spontaneous emission of radiation from the nucleus of an atom |
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What is alpha decay |
Occurs when an atom emits an alpha particle, which is really a helium nucleus. |
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What is Beta Decay |
Beta decay is when a neutron decays into a proton and a electron. A BETA PARTICLE is a high energy particle. |
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What is Gamma Decay |
In gamma decay the nucleus emits a gamma ray. Gamma ray is very high energy electromagnetic radiation. |
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What is becquerels (Bq) |
A becquerel is equal to one decay per second(one decay particle is spit out of the nucleus every second) |
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Decay series |
When radioactive nuceli form, decay series always ends in the formation of a stable isotope. |
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What is transmutation |
Transmutation is when an element changes. |
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Why do elements go through radioactive decay? |
Elements go through radioactive decay because the nuclei of some naturally occuring elemnts are unstable. |
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What are radioisotopes |
Elements that undergo radioactive decay, which is called raioactive isoptes or radioisotopes. |
