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Basic InformationName: Thorium Symbol: Th Atomic Number: 90 Atomic Mass: 232.0381 amu Melting Point: 1750.0 °C (2023.15 K, 3182.0 °F) Boiling Point: 4790.0 °C (5063.15 K, 8654.0 °F) Number of Protons/Electrons: 90 Number of Neutrons: 142 Classification: Rare Earth Crystal Structure: Cubic Density @ 293 K: 11.72 g/cm3 Color: silvery
Atomic Structure
Isotopes
FactsDate of Discovery: 1828 Discoverer: Jons Berzelius Name Origin: Thor (Scandinavian god) Uses: strong alloys, ultraviolet photoelectric cells Obtained From: monazite, thorite Related LinksNone available.MLA Format for Citing This PageBentor, Yinon. Chemical Element.com - Thorium. <http://www.chemicalelements.com/elements/th.html>. For more information about citing online sources, please visit the MLA's Website.
This page was created by Yinon Bentor.
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