ELEMENT 90 of the Periodic Table, thorium, ordinarily appears as the first element of the actinide series, appended below cerium at the bottom of Table 1. This construction gives the impression that thorium is the second member of a series starting with actinium in the scandium group, just as...
Protons/Electrons:90 Neutrons:142 Shell structure:2,8,18,32,18,10,2 Electron configuration:[Rn]6d27s2 Oxidation state:4 Crystal structure:cubic face centered Named after Thor, a Scandinavian god of war, thorium is about three times more abundant than uranium. It is found in ...
preceding paragraph notwithstanding, I traded this sample for the next one listed under thorium, a square rod in a glass ampule. OK, not just for the rod, I got something else that must remain confidential for the time being, but will show...
It seems I guessed right about the correct method for shipping thorium, because these people certainly know what they are doing. I chose this sample to represent its element in myPhotographic Periodic Table Poster. The sample photograph includes text exactly as it appears in the poster, which yo...
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years and is used as a nuclear fuel. Thorium is used in magnesium alloys, and its oxide is widely used in gas mantles of Welsbach burners. Atomic number 90; atomic weight 232.038; melting point 1,750°C; boiling point 4,788°C; specific gravity 11.72; valence 4. SeePeriodic Table. ...
Position in the periodic table [1] Group Period Block Actinides 7 f Where is Thorium on the Periodic Table Properties and Characteristics of Thorium General Properties Relative atomic mass 232.038 [1] Atomic mass/weight 232.038 atomic mass units Physical Properties Color/appearance Grayish ...
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It is a member of the actinide series in Group 3 of the periodic table and is sometimes classed as one of the rare-earth metals. When pure, the metal is stable and resists oxidation, but it is usually contaminated with small amounts of the oxide, which cause it to tarnish rapidly. It...