Carbon 14 useful radioactive dating not nuclear medicine
However, rocks and other objects in nature do not give off such obvious clues about how long they have been around.So, we rely on radiometric dating to calculate their ages.
Isotopes are two forms of an element that have the same atomic number but different masses.
This is due to the element having a fixed number of protons but with varying numbers of neutrons.
Carbon dating is used to determine the age of biological artifacts up to 50,000 years old.
This technique is widely used on recent artifacts, but educators and students alike should note that this technique will not work on older fossils (like those of the dinosaurs alleged to be millions of years old).
Naturally occurring radioactive substances have high nucleon number.
It is possible to make artificial radioactive substances by bombarding lighter nuclides with - particles, protons or neutrons.
The radioactive substances produced in this manner are known as radioisotopes.
A nuclide is any species of atom of which each atom has an identical proton number and also an identical nucleon number.
(Hydrogen is the only exception as most hydrogen atoms contain no neutrons.) The protons and neutrons are found in the atomic nucleus, while the electrons are found in the space around the nucleus and constantly orbit around it.
The sum of the protons and neutrons is the mass number.
The methods work because radioactive elements are unstable, and they are always trying to move to a more stable state. This process by which an unstable atomic nucleus loses energy by releasing radiation is called radioactive decay.Tags: Adult Dating, affair dating, sex dating