# data[].attributes.body
1. https://www.britannica.com/science/radioactive-isotope
Radioactive Isotope, Encyclopedia Britannica,  3-17-2016,©2017 Encyclopedia Britannica, Inc. Feb. 13, 2016
2.http://www.dictionary.com/browse/radioactive-isotope
Dictionary, Radioactive Isotope, © 2017 Dictionary.com, LLC. Feb. 13,2017
3.http://www.infoplease.com/encyclopedia/science/radioactive-isotope.html
Info please, radioactive isotope, © 2000–2017 Sandbox Networks, Inc., publishing as Info please. Feb. 13,2016

# data[].attributes.body
Chlorine has two stable isotopes and one radioactive isotope: the cosmogonist isotope 36 Cl Its half-life is 301,000 ± 2,000 years. 36 Cl decays primarily (98%) by beta-minus decay to 36 Ar , and the balance to 36 S . Chlorine can be found in abundance in both the Earth's crust and in ocean water. In the ocean, chlorine is found as part of the compound sodium chloride (NaCl), also known as table salt. In the Earth's crust, the most common minerals containing chlorine include halite (NaCl), carnal-lite, and Sylvie (KCl). Chlorine also used by sanitary for the water treatment.

# data[].attributes.body
a radioactive isotope of hydrogen, occurring in trace amounts in natural hydrogen and produced in a nuclear reactor. Tritiated compounds are used as tracers. Symbol: T or ³H; half-life: 12.5 years. Tritium is a naturally occurring radioactive form of hydrogen that is produced in the atmosphere when cosmic rays collide with air molecules. As a result, tritium is found in very small or trace amounts in groundwater throughout the world. It is also a byproduct of the production of electricity by nuclear power plants. Chemistry, biology, astronauts use tritium. Sometimes Scientists use tritium to create a bomb.

# data[].attributes.body
atomic number 7, atomic weight 14.007. (See Appendix 6.) It is a gas constituting about four-fifths of common air; chemically it is almost inert. It is not poisonous but is fatal if breathed alone because of oxygen deprivation. It is soluble in the blood and body fluids, and can cause serious symptoms when released as bubbles of gas by rapid decompression (see bends). Nitrogen occurs in proteins and amino acids and is thus present in all living cells. Doctors and Architecture's use nitrogen in water (sometimes). Nitrogen can also be extremely poison if you don't use it correctly.

# data[].attributes.body
Carbon-14, ¹⁴C, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons .There are three naturally occurring isotopes of carbon on Earth: 99% of the carbon is carbon 12 1% is and carbon 13 and carbon-14 occurs in trace amounts, i.e., making up about 1 or 1.5 atoms per 10¹² atoms of the carbon in the atmosphere. The half-life of carbon-14 is 5,730±40 years. Carbon-14 decays into nitrogen 14 through beta decay A gram of carbon containing 1 atom of carbon-14 per 10¹² atoms will emit 0.40 beta particles per second. Carbon is found in abundance in the sun, stars, comets and atmospheres of most planets. Graphite is found naturally in many locations. Diamond is found in the form of microscopic crystals in some meteorites. Doctors use carbon(dioxide) to test blood.

# data[].attributes.body
promethium, is a chemical element  with the symbol Pm and atomic number  61. All of its isotopes  are radioactive; it is one of only two such elements that are followed in the periodic table by elements with stable forms, a distinction shared with technetium. Chemically, promethium is a landslide , which forms salts  when combined with other elements. It can be used as beta radiation source in luminous paint, in nuclear batteries for guided missiles, watches, pacemakers and radars, and as a light source for signals. It is possible that in future it will be used as portable X-ray source. Mold-makers often use promethium because it's a metal

# data[].attributes.body
Naturally occurring uranium consists of three isotopes: uranium-234, uranium-235 and uranium-238. Although all three isotopes are radioactive, only uranium-235 is a fissionable material that can be used for nuclear power.
Uranium is used in . Uranium is used as a colorant in uranium glass, producing lemon yellow to green colors.Uranium is also used by the military to power nuclear submarines and in nuclear weapons.

# data[].attributes.body
natural or artificially created isotope of a chemical element having an unstable nucleus that decays, emitting alpha, beta, or gamma rays until stability is reached. The stable end product is a non radioactive isotope of another element, i.e., radium-226 decays finally to lead-206.