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Minerals/Metals/Alkaline earths/Quiz

< Minerals‎ | Metals‎ | Alkaline earths

Alkaline earth minerals is a lecture from the school of geology. It is about solid, crystalline substances containing the alkaline earth elements of the periodic table that occur in and compose astronomical objects. It focuses on materials that may occur on the surface of or associated with some astronomical objects.

This is a magnesium-strontium phase diagram. Credit: A.A. Nayeb-Hashemi and J.B. Clark.

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Quiz edit

  

1 Yes or No, Radium is an actinide element.

Yes
No

2 Carnotite is a potassium uranium

radioactive mineral.

3 Yes or No, Potassium is an alkaline earth element.

Yes
No

4 Autunite occurs as an oxidizing product of uranium minerals in granite pegmatites and hydrothermal

.

5 True or False, Magnesium is an alkali earth element.

TRUE
FALSE

6 Complete the text:

Elements usually emit a

during nuclear

or

.

7 True or False, Alkaline earth minerals, or alkaline earths, are those with unusually high concentrations, atomic per cents, or weight per cents, of the alkaline earth elements.

TRUE
FALSE

8 Carnotite is a mineral that may be associated with which phenomena?

varying water content
small amounts of calcium, barium, magnesium, iron, and sodium
a bright to greenish yellow mineral
demonstrating that Venus was once a comet
amounts as low as one percent will color sandstone a bright yellow.
an important uranium ore
usually found in sedimentary rocks in arid climates

9 Yes or No, Radium is an alkaline earth metal.

Yes
No

10 A terrestrial planet is composed primarily of?

11 Yes or No, Barium is an actinide element.

Yes
No

12 The primary source of the world's thorium is the rare-earth, and thorium, phosphate mineral

.

13 Yes or No, Strontium is an actinide element.

Yes
No

14 Complete the text:

The extremely rare element technetium can be found in

in very small quantities (about 0.2 ng/kg), produced by the

fission of uranium-238.

15 True or False, Calcium is an actinide element.

TRUE
FALSE

16 Which geochemical phenomena are associated with magnesium?

forsterite
lightning
dolomite
whitlockite
gypsum
water worn, small, heavy, black, cubic crystals

17 True or False, Plutonium is an alkaline earth metal.

TRUE
FALSE

18 Uranophane is a rare calcium uranium

hydrate mineral.

19 True or False, Berkelium is an actinide element.

TRUE
FALSE

20 Yes or No, Calcium is an alkaline earth metal.

Yes
No

21 Yes or No, Natrium is an actinide element metal.

Yes
No


Hypotheses edit

Main article: Hypotheses
  1. Alkaline earths are often found in all rocks.

See also edit

External links edit

{{Radiation astronomy resources}}

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