90
Th
232.03774Thorium
Appearancesilvery, often with black tarnish
Categoryactinide
Discovered byJöns Jakob Berzelius
Named byN/A
What element is Th on the periodic table?Th is the element Thorium on the periodic table.
What is the symbol for Thorium on the periodic table?The symbol for Thorium on the periodic table is Th.
What does Thorium look like?To the human eye, Thorium is silvery, often with black tarnish.
About ThoriumThorium is a chemical element; it has symbol Th and atomic number 90. Thorium is a weakly radioactive light silver metal which tarnishes olive grey when it is exposed to air, forming thorium dioxide; it is moderately soft, malleable, and has a high melting point. Thorium is an electropositive actinide whose chemistry is dominated by the +4 oxidation state; it is quite reactive and can ignite in air when finely divided.Source: Wikipedia