Uranium

{
  "id": "MLC-T-ENV-029266",
  "term": "Uranium",
  "field": "Environment",
  "definition": "1. A heavy, naturally radioactive, metallic element that is used to produce nuclear power.\n\n2. A radioactive (unstable) element generally found in the environment. As uranium decays, it releases radiation and forms other elements (like radium and radon) until it becomes a stable element.\n\n3. A heavy silvery-white metallic element, highly radioactive and easily oxidized. Of the 14 known isotopes of uranium, U238 is the most abundant in nature.\n\n4. Uranium (chemical symbol U, atomic number 92) is a silvery metallic element in the actinide series. The heaviest naturally occurring element, uranium is nearly twice as dense as lead and weakly radioactive. It occurs naturally in low concentrations (a few parts per million) in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite.\n\n5. A naturally radioactive element with the atomic number of 92 (number of protons in nucleus) and an atomic weight of approximately 238. The two principal naturally occurring isotopes are the fissionable U-235 (0.7% of natural uranium) and the fertile U-238 (99.3% of natural uranium).",
  "abbreviation": "Uranium Ore",
  "subject": "Air",
  "references": [
    "Student's Guide to Global Climate Change",
    "RadTown Glossary",
    "USGS National Water-Quality Assessment (NAWQA) Program Glossary",
    "USGS Energy Glossary & Acronym List",
    "DOE Glossary of Terms Related to CERCLA, EPCRA, PPA, RCRA and TSCA at http://homer.ornl.gov/sesa/environment/guidance/cercla/gloss97.pdf"
  ],
  "url": "https://mlchart.com/terminology/environment/uranium/"
}