Recall that atoms are the basic building blocks of matter.
Atoms are made up of much smaller particles called protons, neutrons, and electrons.
A child mummy is found high in the Andes and the archaeologist says the child lived more than 2,000 years ago.
How do scientists know how old an object or human remains are?
We will deal with carbon dating first and then with the other dating methods.
Carbon has unique properties that are essential for life on Earth.
So, we have a “clock” which starts ticking the moment something dies.
Obviously, this works only for things which were once living.
Many people have been led to believe that radiometric dating methods have proved the earth to be billions of years old.
What methods do they use and how do these methods work?
In this article, we will examine the methods by which scientists use radioactivity to determine the age of objects, most notably carbon-14 dating.
Protons and neutrons make up the center (nucleus) of the atom, and electrons form shells around the nucleus.
The number of protons in the nucleus of an atom determines the element.