nuclear radiation
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| define radioactivity | The process by which an unstable nucleus gives off nuclear radiation.
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| define Mass Number | The sum of the numbers of protons and neutrons.
in the nucleus of an atom.
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| What is Radioactivity also called? | Radioactive Decay.
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| What is an Isotope? | A isotope is an atom that has the same number of protons as the other atoms of the same element do but that has a different number of neutrons.
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| what can stop Alpha particles? | Paper
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| What can stop Beta particles? | Aluminum
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| What can stop Gamma Rays? | A few centimeters of lead or a few meters of concrete.
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| What is a half-life? | The time needed for half of a sample of radioactive substance to undergo radioactive decay.
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| What causes the most damage to you? | Alpha Particles
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