Related MeSH Hierarchy (5)
Chemicals and Drugs [D] » Inorganic Chemicals [D01] » Elements » Elements, Radioactive » Actinoid Series Elements » Thorium
Chemicals and Drugs [D] » Inorganic Chemicals [D01] » Elements » Metals, Heavy » Thorium
Chemicals and Drugs [D] » Inorganic Chemicals [D01] » Isotopes » Radioisotopes » Elements, Radioactive » Actinoid Series Elements » Thorium
Chemicals and Drugs [D] » Inorganic Chemicals [D01] » Metals » Actinoid Series Elements » Thorium
Chemicals and Drugs [D] » Inorganic Chemicals [D01] » Metals » Metals, Heavy » Thorium
Description
A radioactive element of the actinide series of metals. It has an atomic symbol Th, atomic number 90, and atomic weight 232.04. It is used as fuel in nuclear reactors to produce fissionable uranium isotopes. Because of its radioopacity, various thorium compounds are used to facilitate visualization in roentgenography. MeSH
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