Kayayyaki
| Thorium, 90th | |
| Cas No. | 7440-29-1 |
| Bayyanar | silvery, sau da yawa tare da baƙar fata |
| Lambar Atom (Z) | 90 |
| Farashin STP | m |
| Wurin narkewa | 2023 K (1750 °C, 3182 °F) |
| Wurin tafasa | 5061 K (4788 °C, 8650 °F) |
| Yawan yawa (kusa da rt) | 11.7 g/cm 3 |
| Zafin fuska | 13.81 kJ/mol |
| Zafin vaporisation | 514 kJ/mol |
| Ƙarfin zafin rana | 26.230 J/ (mol·K) |
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thorium (IV) oxide (Thorium Dioxide) (ThO2) foda Tsarkake Min.99%
Thorium Dioxide (ThO2), kuma ake kirathorium (IV) oxide, Tushen Thorium ne mai matuƙar rashin narkewar zafin jiki. Yana da kauri mai kauri kuma sau da yawa fari ko rawaya a launi. Har ila yau, an san shi da thoria, ana samar da shi ne a matsayin samfurin lanthanide da uranium. Thorianite shine sunan nau'in ma'adinai na thorium dioxide. Thorium yana da daraja sosai a cikin gilashin da samar da yumbu a matsayin launi mai launin rawaya mai haske saboda mafi kyawun kyan ganiHigh Purity (99.999%) Thorium Oxide (ThO2) Foda a 560 nm. Abubuwan oxide ba su da iko ga wutar lantarki.