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Every chemical element has one or more radioactive isotopes. For example, hydrogen, the lightest element, has three isotopes with mass numbers 1, 2, and 3. Only hydrogen-3 , however, is a radioactive isotope, the other two being stable. More than 1,000 radioactive isotopes of the various elements are known.


The lungs generally suffer the radiation damage from gas, vapors or particles in the form of radioactive aerosols that are inhaled through the breathing. However, that’s the radioactive isotopes used in medicine. Examples of Radioactive isotopes Used In Medical Science


If an isotope undergoes radioactive decay very, very slowly, it may be termed stable. An example is bismuth-209. Bismuth-209 is a stable radioactive isotope that undergoes alpha-decay but has a half-life of 1.9 x 10 19 years (which is more than a billion times


Radioactive isotopes may also be classified as stable isotopes when their half-lives are too long to be measured. These elements can often be found to occur in nature and include isotopes of carbon, nitrogen, hydrogen, oxygen, noble gases and metals. For example, there are a lot of carbon atoms in the universe. The normal ones are carbon-12.


Radioactive isotopes, also known as radioisotopes, have unstable nuclei that emit energy in the form of radiation until their nuclei becomes stable. There are approximately 50 naturally occurring ...


A radionuclide (radioactive nuclide, radioisotope or radioactive isotope) is an atom that has excess nuclear energy, making it unstable. This excess energy can be used in one of three ways: emitted from the nucleus as gamma radiation; transferred to one of its electrons to release it as a conversion electron; or used to create and emit a new particle (alpha particle or beta particle) from the ...


Here, Carbon-12 is a stable isotope whereas carbon-14 is mostly a radioactive isotope. Apart from these some of the other common isotope examples include – Tin has 22 isotopes, Zinc has 21 known isotopes, Neon is a mix of 3 isotopes, natural xenon consists of a mixture of 9 stable isotopes, Nickel has 14 known isotopes.


Some Types of radioisotopes are Radioactive sodium carbon, phosphorous, Iodine, Gold. Radioisotopes examples. Examples of natural radioisotopes are 238 U (uranium), 40 K (potassium), 232 Th (thorium) and their child nuclei (obtained by radioactive decay of the previous ones) 226 Ra (radio), 222 Rn (radon) and 218 Po (polonium).


For example, primordial isotopes thorium-232, uranium-238, and uranium-235 can decay to form secondary radionuclides of radium and polonium. Carbon-14 is an example of a cosmogenic isotope. This radioactive element is continually formed in the atmosphere due to cosmic radiation.


Some examples of stable isotopes are isotopes of carbon, potassium, calcium and vanadium. Radioactive isotopes have an unstable combination of protons and neutrons, so they have unstable nuclei.