Which radioactive isotope is used in biological dating
These particles may be accompanied by the emission of energy in the form of electromagnetic radiation known as gamma rays. Radioactive products which are used in medicine are referred to as radiopharmaceuticals.This is a branch of medicine that uses radiation to provide information about the functioning of a person's specific organs or to treat disease.The numerical difference between the actual measured mass of an isotope and A is called the mass defect.
In an atom in the neutral state, the number of external electrons also equals the atomic number.Stable isotopes already play an important role in research today and will become even more important to research in the future.Examples of stable elements used in nuclear medicine isotopes such as carbon-13, nitrogen-15 and oxygen-18 as well as noble gas isotopes.The great importance of the atomic number derives from the observation that all atoms with the same atomic number have nearly, if not precisely, identical chemical properties.A large collection of atoms with the same atomic number constitutes a sample of an element.
In most cases, the information is used by physicians to make a quick, accurate diagnosis of the patient's illness.