This exact atom, you just know that it had a 50% chance of turning into a nitrogen.So with that said, let's go back to the question of how do we know if one of these guys are going to decay in some way.I'm going to use the second one since it's easier and it's used carbon dating half life problem often. Here's one of the formulas they use: If we mess with this a bit, we can make it simpler: Solving for Time and Rates.Tricks to Help with Solving Log Carbon dating half life problem.
This is where the half-life comes in You can use either of these formulas.
So if we go to another half-life, if we go another half-life from there, I had five grams of carbon-14.
So now we have seven and a half grams of nitrogen-14.
As radioactive isotopes of elements decay, they lose their radio activity and become a brand new element known as a daughter isotope.
By measuring the ratio of the amount of the original radioactive element to the daughter isotope, scientists can determine how many half-lives the element has undergone and from there can figure out the absolute age of the sample."Everything which has come down to us from heathendom is wrapped in a thick fog; it belongs to a space of time we cannot measure.