C14 dating coal gabrielle anwar is dating
Looking at the first isotope in the chart, Carbon 9 has 9 (protons + neutrons).
Most nitrogen atoms have seven protons and seven neutrons, so their atomic mass is 7 + 7 = 14.
The fact that it has seven protons is what makes it nitrogen.
Three of the Carbon isotopes (C) are found in nature.
The rest of the carbon isotopes are only of laboratory interest.
Other atoms are also named based on the number of protons they carry.Notice in the diagram that eight different isotopes of Carbon are illustrated.Since protons and neutrons weigh about the same, the atomic mass of ordinary carbon is 6 + 6 = 12.It is called "Carbon-12," which is abbreviated "C." The fact that the atom has six protons is what makes it carbon.
The top number is the Mass Number for each isotope.The Mass Number for any isotope is the addition of all the protons and neutrons in the nucleus.