radioactive datingWhat is an atom?The smallest part of an element that has all theproperties of that elementWhat does an atom contain?electrons, protons, neutrons, and energyWhat is an element?a type of matter in which all the atoms are exactly thesameWhat is radioactive decay?the breakdown of a radioactive element;releasing particles and energyWhat happens during radioactive decay?during radioactive decay, theatoms of one element break down to form atoms of another elementIn radioactive decay, what is a half-life?the rate of decay of an element,the time it takes for half of the radioactive atoms to decayIn a rock, when does “start” begin?the moment molten material cools tobecome igneous rockWhere would you find igneous rock among rock layers at a location?in anintrusion or extrusion
