Chemicals/Thoriums/Quiz

Thoriums is an effort, in a lecture format, to describe the chemicals of the element thorium.

You are free to take this quiz based on the lecture/article thoriums at any time.

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Enjoy learning by doing!

Quiz
{Yes or No, The primary source of the world's thorium is the rare-earth, and thorium, phosphate mineral monazite. + Yes - No
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{Monazite can occur as a tabular { crystal (i) }.
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{Yes or No, 227Th is also called radioactinium. + Yes - No
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{True or False, The difference between geochemical reactions and astrochemical reactions is that one is restricted to Earth. + TRUE - FALSE
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{Complete the text: { Thorianite (i) } is a rare thorium { oxide (i) } mineral with the formula { ThO2|ThO2 (i) }.
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{Yes or No, Thorium occurs in all granites. + Yes - No
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{True or False, 234Th is also known as Uranium X1. + TRUE - FALSE
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{Yes or No, At room temperature and pressure, thorium crystallizes into a face-centered cubic lattice. + Yes - No
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{True or False, Thorium is a silvery, radioactive, metallic element. + TRUE - FALSE
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{Yes or No, Thorium is chemical element number 90 in the periodic table. + Yes - No
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Hypotheses

 * 1) There is at least one chemical unique to Earth.