# What is the natural process of radioactive dating Sluttroulette free videos

($$\ce$$-240 has a half-life of 1 hour) Solution $$\ce$$-240 with a half life of only 1 hour.After 4 hours, only $$3.75 \: \text$$ of our original $$60 \: \text$$ sample would remain the radioactive isotope $$\ce$$-240.The half-lives of many radioactive isotopes have been determined and they have been found to range from extremely long half-lives of 10 billion years to extremely short half-lives of fractions of a second.The quantity of radioactive nuclei at any given time will decrease to half as much in one half-life.Subsequently, dramatic developments have taken place and determining the ages of minerals, rocks, archaeological and historical objects and so on is now routine.

All types of radioactive decay make a graph of the same general shape.

For example, if there were $$100 \: \text$$ of $$\ce$$-251 in a sample at some time, after 800 years, there would be $$50 \: \text$$ of $$\ce$$-251 remaining and after another 800 years (1600 years total), there would only be $$25 \: \text$$ remaining.