Mass number, atomic number, isotopes
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7 Terms
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what does the electrons represent?
the chemical properties of an element
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what does the mass number consist of ?
protons + neutrons
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Atomic number
mean mass of an atom of an element compared to 1/12th the mass of carbon 12
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isotopes
atoms with the same number of protons but different number of neutrons, different isotopes react in the same chemical way as they have the same electron configuration
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what is the result of having different neutrons in nuclei?
unstable and can cause the nucleus to break down. Which is the cause of radioactivity
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half life
time taken for half of its radioactivity to decay
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what can dating do?
find age of a material
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