I was having breakfast the other day with a friend who was giving dating advice to his son.
For purposes of his anonymity, I am going to call just call him "Son." My friend said, "Son, you're 18 years old, so I am going to tell you how you date.
When you're 25, you can date a 19-and-a-half-year-old.
So there you are in the working world for the last three years, and now you can date sophomores in college. You have been out in the business world for eight years, and you want to be dating a girl fresh out of college?
The radioactive parent elements used to date rocks and minerals are: Radiometric dating using the naturally-occurring radioactive elements is simple in concept even though technically complex.
If we know the number of radioactive parent atoms present when a rock formed and the number present now, we can calculate the age of the rock using the decay constant.
Radioactivity was discovered in 1896 by French physicist Henri Becquerel.