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- Name: Uranium
- Symbol: U
- Atomic Number: 92
- Atomic Weight: 238.02891 u
- Period: 7
- Group: N/A
26 Uranium Facts for Kids
- Uranium is a chemical element on the periodic table.
- Uranium is named after the planet Uranus, which itself is named after Uranus, the Greek god of the sky.
- Uranium was discovered in 1789 by German chemist Martin Heinrich Klaproth.
- Uranium was first isolated in 1843 by French chemist Eugène-Melchior Péligot.
- The radioactive properties of uranium were discovered in 1896 by French physicist Henri Becquerel.
- Uranium has a silvery white color.
- Uranium is a solid at room temperature.
- The symbol for uranium is U.
- The atomic number for uranium is 92.
- The standard atomic weight for uranium is 238.02891 u.
- The atomic weight of uranium is the highest of all naturally occurring elements.
- Uranium is in the actinide element category on the periodic table.
- Uranium is a period 7 chemical element, which is the seventh row on the periodic table.
- Uranium has no stable isotopes.
- The six main isotopes of uranium are 232U, 233U, 234U, 235U, 236U and 238U.
- The most common uranium isotopes are uranium-238 and uranium-235.
- Uranium-238 accounts for more than 99% of the uranium found on Earth.
- The melting point for uranium is 2,070 °F (1,132.2 °C).
- The boiling point for uranium is 7,468 °F (4,131 °C).
- Around 33% of all mined uranium comes from Kazakhstan.
- Uranium naturally forms in a supernova explosion or the merger of two or more neutron stars.
- It’s estimated that 31% of the world’s known uranium reserves are in Australia.
- The largest deposit of uranium is in South Australia at the Olympic Dam Mine.
- Uranium-235 is used as a fuel source in nuclear power plants.
- Uranium-235 is used in nuclear weapons, the deadliest weapons man has ever created.
- The first uranium-based nuclear weapon used in war was Little Boy. It was dropped on the city Hiroshima in Japan on August 6th, 1945 at 6:15 EST.
Additional Resources on Uranium
- Uranium (U) – Learn more about the chemical element urainium on the Los Alamos National Laboratory website.
- What is Uranium? – Discover what uranium is and what it’s used for on the World Nuclear Associationb website.
- Uranium, What is It? – Find more useful information and facts about uranium on the New Mexico Institute of Mining & Technology website.
- Everything you need to know about uranium – Learn everything and anything about uranium on the Popular Science website.