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Thorium
General Info
Atomic Symbol	Th
Atomic Number	90
Atomic Weight	g/molwarning.png" g/mol" is not a number.
Chemical series	[[]]
Appearance
Group, Period, Block
Electron configuration
Electrons per shell
CAS number	warning.pngEmpty strings are not accepted.
Physical properties
Phase
Density	g/mlwarning.png" g/ml" is not a number.
Melting point	warning.png"" is not a number.
Boiling point	warning.png"" is not a number.
Isotopes of Thorium
iso NA half-life DT DE (MeV) DP is stable with neutrons.
All properties are for STP unless otherwise stated.

Thorium is the 90th element.

See Also

• Periodic Table of Elements
• Elements
• Atoms
• Chemistry