90
232.038
Th
Thorium

Thorium

11.7
232.038
[Rn] 6d27s2
230Th, 232Th
7
f
90
2, 8, 18, 32, 18, 10, 2
608.504
Th
11.7
1750°C, 3182°F, 2023 K
4785°C, 8645°F, 5058 K
Jöns Jacob Berzelius
1829
7440-29-1
22399
More Information
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Atomic Data

Atomic Radiues, Non-bonded (A): 2.45
Electron Affinity (kJ mol-1): Unknown
Covalent Radiues (A): 1.90
Electronegativity (Pauling Scale): 1.3
Ionisation Energies (kJ mol-1) 1st 2nd 3rd 4th 5th 6th 7th 8th
608.504 1148.2 1930 2778.8 - - - -

Oxidation States and Isotopes

Common oxidation states 1
Isotope Atomic Mass Natural Abundance Half Life Mode of Decay
230Th 230.033 - 7.56 x 104 y α
> 2 x 1018 y sf
232Th 232.038 100 1.4 x 1010 y α
1.2 x 1021 y sf
 

Supply Risk

Relative Supply Risk: 7.6
Crustal Abundance (ppm): 5.6
Recycle Rate (%): Unknown
Production Conc.(%) : 80
Top 3 Producers:
1) India
2) Brazil
3) Malaysia
Top 3 Reserve Holders:
1) USA
2) Australia
3) India
Substitutability: High
Political Stability of Top Producer: 10.8
Political Stability of Top Reserve Holder: 56.6

Pressure and Temperature Data

Specific Heat Capacity: 118
Shear Modulus: Unknown
Young Modulus: Unknown
Bulk Modulus: Unknown
Pressure 400k Pressure 600k Pressure 800k Pressure 1000k Pressure 1200k Pressure 1400k Pressure 1600k Pressure 1800k Pressure 2000k Pressure 2200k Pressure 2400k
- - - - - 3.33 x 10-11 2.00 x 10-8 2.89 x 10-6 0.000154 0.00401 Unknown

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