Th | Z = 90 | ◊ ◊ ◊ ◊ ◊ |
Thorium | |
From the Old Norse "Thor", meaning "thunder" | ||||
(AM) Atomic Mass | 232.0381 amu | ♦ | Oxidation States | +4 |
(BP) Boiling Point | 4790  °C | ♦ | (MP) Melting Point | 1750 °C |
(ρ) Density | 11 g/cm3 | ♦ | Crystal Structure | Face Centered Cubic |
( χ ) Electronegativity | 1.3 | ♦ | (AR) Atomic Radius | 1.65  Å |
Physical State | Solid | ♦ | (C) Heat Capacity | 0.113 J/g °C |
Electronic-Config | [Rn]  6d2  7s2  | ♦ | (I1) First Ionization E | 586.63 kJ/mol |
(ΔHvap) Heat of Vaporization | 514 kJ/mol | ♦ | (ΔHfus) Heat of Fusion | 13.81 kJ/mol |
Year of Discovery | 1829 | ♦ | Location of Discovery | Sweden |
(E°) Standard Potential | Th4+⇔ Th (-1.899 V) | |||
Stable isotopes |  232Th | |||
Discovered/Synthesized by | Jöns Jacob Berzelius | |||
Natural Source | The mineral/ore monazite | |||
Common Uses | Nuclear reactor fuel, gas lamp mantles, tungsten filaments | |||
Other Info | Promising substitute for Uranium in new generation of nuclear reactors | |||
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