Concept radiometric dating

22-Jan-2017 10:47 by 3 Comments

Concept radiometric dating

Each atom is named based on its number of protons, for instance, every atom that has only one proton is an atom of Hydrogen by definition.By the same rules, any atom that contains exactly eight protons is identified as an atom of Oxygen.

Elements provide a system of classification for all the different types of atoms.While matter has several slightly different definitions, for the purposes of this discussion it can just be thought of as what makes up all physical objects.All matter is made up of small particles called atoms.This page will describe several aspects of the chemical background that will assist in the understanding of Radiometric Dating.Almost everything in the Universe is comprised of matter.There exist atoms that have one proton, one neutron, and one electron.

These atoms are of the element Hydrogen based on their proton number, but they are of a different isotope: Deuterium.The principles of radioactive decay are clear and constant in every case.A radioactive element emits some sort of particle or energy, and becomes a different element or isotope. A half-life is the time it takes for exactly one half of a sample to decay completely. It will take twelve years for one half of a sample of Tritium to decay, and it will take an additional twelve years for one half of the remaining sample to decay.This phenomenon is known as radioactive decay (it is called this because particles are radiated from the parent, and a different atom remains at the end).There are many radioactive isotopes in existence and there are several types of decay."Radiometric Dating" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, Me SH (Medical Subject Headings).