Stable - Will not spontaneously undergo radioactive decay, Unstable - Will spontaneously undergo radioactive decay, Nucleus - Radioactive emissions come from the ______, Isotope - Same proton number, different neutron number, Ion - Gained or lost an electron, Ionizing - Something that is capable of knocking electrons off atoms, Absorbed - Radiation can be _______ by human tissue, Geiger Muller Counter - Machine we can use to detect radiation, Natural sources - Radon gas and rocks are ___________ ___________ of background radiation, Man made sources - Medical use and nuclear weapon testing are ___________ ___________ of background radiation, Activity - Means number of disintegrations per second, Bequerel - Unit of activity, Count rate - The number of disintegrations measured, rather than that actually occurs, Greater than - Activity will be _________ count activity, Emit - Means 'give out' , Nucleon number - Number of protons and neutrons, Atomic number - Number of protons,

Radioactivity topic starter

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