Nepali syd sex chat site - Radiocarbon dating used in a sentence
Carbon, uranium and potassium are just a few examples of elements used in radioactive dating.Each element is made up of atoms, and within each atom is a central particle called a nucleus.
If a fossil is found between two layers of rock whose ages are known, the fossil's age is thought to be between those two known ages.
Because rock sequences are not continuous, but may be broken up by faults or periods of erosion, it is difficult to match up rock beds that are not directly adjacent.
When an atom varies in the number of neutrons, the variation is called an isotope. During radioactivity, the unstable isotope breaks down and changes into a different substance.
A new, more stable isotope, called the decay or daughter product, takes its place.
Within the nucleus, we find neutrons and protons; but for now, let's just focus on the neutrons.