About This Site

 Window Version

 Show Table With:
   Atomic Number
   Atomic Mass
   Electron Configuration
   Number of Neutrons
   Melting Point
   Boiling Point
   Date of Discovery
   Crystal Structure

 Element Groups:
   Alkali Metals
   Alkaline Earth Metals
   Transition Metals
   Other Metals
   Noble Gases
   Rare Earth Elements


Uranium at Chemical Elements.com
Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page

Basic Information

Name: Uranium
Symbol: U
Atomic Number: 92
Atomic Mass: 238.0289 amu
Melting Point: 1132.0 °C (1405.15 K, 2069.6 °F)
Boiling Point: 3818.0 °C (4091.15 K, 6904.4 °F)
Number of Protons/Electrons: 92
Number of Neutrons: 146
Classification: Rare Earth
Crystal Structure: Orthorhombic
Density @ 293 K: 18.95 g/cm3
Color: silverish

Atomic Structure

[Bohr Model of Uranium]  
Number of Energy Levels: 7

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 32
    Fifth Energy Level: 21
    Sixth Energy Level: 9
    Seventh Energy Level: 2


Isotope Half Life
U-23020.8 days
U-2314.2 days
U-23270.0 years
U-233159000.0 years
U-234247000.0 years
U-2357.0004E8 years
U-2362.34E7 years
U-2376.75 days
U-2384.47E9 years
U-23923.5 minutes
U-24014.1 hours


Date of Discovery: 1789
Discoverer: Martin Klaproth
Name Origin: After the planet Uranus
Uses: fuel for nuclear reactors
Obtained From: many rocks, large amounts in pitchblende and carnotite

Related Links

Note: The external links below are not a part of this site and their content is not the responsibility of this site
  1. Chemical Of The Week -- Uranium Clock
    • From the University of Wisconsin-Madison
  2. What is uranium?
    • Contains information about uranium and nuclear power
If you know of any other links for Uranium, please let me know

MLA Format for Citing This Page

Bentor, Yinon. Chemical Element.com - Uranium. <http://www.chemicalelements.com/elements/u.html>.

For more information about citing online sources, please visit the MLA's Website.

This page was created by Yinon Bentor.
Use of this web site is restricted by this site's license agreement.
Copyright © 1996-2012 Yinon Bentor. All Rights Reserved.