An atomic nucleus emits and alpha particle amd thereby transforms into an atom with a mass number that is reduced by 4 and an atomic number that is reduced by 2.
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Beta Radiation.
A high-speed electron; specifically one emiited by a radioactive nucleus in beta decay.
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Gamma Radiation.
Is extremely high-frequency electromagnetic radiation and therefore consists of high-energy protons.
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Atomic Number.
Is the number of protons, and therefore also the total positive charge, in the atomic nucleus.
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Isotope.
They are the atoms of an element with different numbers of neutrons. They have the same proton numbers but different mass numbers.
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Mass Number.
Is the total number of protons and neutrons in an atomic nucleus.
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Half-Life.
Is the average time taken for the number of the nuclei in the sample to half.
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Other cards in this set
Card 2
Front
A high-speed electron; specifically one emiited by a radioactive nucleus in beta decay.
Back
Beta Radiation.
Card 3
Front
Is extremely high-frequency electromagnetic radiation and therefore consists of high-energy protons.
Back
Card 4
Front
Is the number of protons, and therefore also the total positive charge, in the atomic nucleus.
Back
Card 5
Front
They are the atoms of an element with different numbers of neutrons. They have the same proton numbers but different mass numbers.
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