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Chemicals/Thoriums/Quiz

< Chemicals‎ | Thoriums

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

Just eight grams of thorium would be enough to power a vehicle for its entire life. Credit: Charles Stevens.

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

To improve your score, read and study the lecture, the links contained within, listed under See also, External links, and in the {{chemistry resources}} and {{geology resources}} templates. This should give you adequate background to get 100 %.

As a "learning by doing" resource, this quiz helps you to assess your knowledge and understanding of the information, and it is a quiz you may take over and over as a learning resource to improve your knowledge, understanding, test-taking skills, and your score.

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Enjoy learning by doing!

Quiz edit

  

1 Yes or No, The primary source of the world's thorium is the rare-earth, and thorium, phosphate mineral monazite.

Yes
No

2 Monazite can occur as a tabular

.

3 Yes or No, 227Th is also called radioactinium.

Yes
No

4 True or False, The difference between geochemical reactions and astrochemical reactions is that one is restricted to Earth.

TRUE
FALSE

5 Complete the text:

is a rare thorium

mineral with the formula

.

6 Yes or No, Thorium occurs in all granites.

Yes
No

7 True or False, 234Th is also known as Uranium X1.

TRUE
FALSE

8 Yes or No, At room temperature and pressure, thorium crystallizes into a face-centered cubic lattice.

Yes
No

9 True or False, Thorium is a silvery, radioactive, metallic element.

TRUE
FALSE

10 Yes or No, Thorium is chemical element number 90 in the periodic table.

Yes
No


Hypotheses edit

Main article: Hypotheses
  1. There is at least one chemical unique to Earth.

See also edit

External links edit

{{Chemistry resources}}

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