Minerals/Transuranics/Quiz

Transuranic minerals is a lecture from the school of geology. It is about solid, crystalline substances containing the transuranic 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.

You are free to take this quiz based on transuranic minerals at any time.

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Quiz

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1

Complete the text:

Based on the observation of the long-lived isotopes of , 261Rg and 265Rg (Z = 111, t1/2 ≥ 108 y) in natural , an experiment was performed to enrich Rg in 99.999% Au.

2

Yes or No, Radium is an actinide element.

	Yes
	No

3

Carnotite is a potassium uranium

radioactive mineral.

4

Yes or No, Lead is an actinide element.

	Yes
	No

5

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

.

6

True or False, Actinium is an actinide element.

	TRUE
	FALSE

7

Complete the text:

Elements usually emit a during nuclear or .

8

True or False, Actinide minerals, or actinides, are those with unusually high concentrations, atomic per cents, or weight per cents, of the actinide elements.

	TRUE
	FALSE

9

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

10

Yes or No, Thorium is an actinide element.

	Yes
	No

11

Complete the text:

Muromontite is a mixture of uranium and . Alpha particles from the decay of are captured by the beryllium atoms, which in turn release neutrons. In the case of this sample, the neutrons are in turn re-captured by the , which then undergoes further and is transformed into .

12

Yes or No, Thorium is a transuranic element.

	Yes
	No

13

A terrestrial planet is composed primarily of?

14

Yes or No, Protactinium is an actinide element.

	Yes
	No

15

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

.

16

Yes or No, Uranium is an actinide element.

	Yes
	No

17

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.

18

True or False, Neptunium is a transuranic element.

	TRUE
	FALSE

19

Which geochemical phenomena are associated with thorianite?

	thorium oxide
	lightning
	common in the alluvial gem-gravels of Sri Lanka
	the mineral is slightly less radioactive than pitchblende
	liquid methane oceans
	water worn, small, heavy, black, cubic crystals

20

Yes or No, Muromontite contains the highest known naturally occurring concentration of plutonium.

	Yes
	No

21

True or False, Plutonium is an actinide element.

	TRUE
	FALSE

22

Phenomena associated with torbernites?

	have a gaseous surface
	radioactive
	hydrated green copper uranyl phosphate mineral
	isostructural with the related uranium mineral, autunite
	the number of water hydration molecules can vary between 12 and 8
	gives rise to a variety of metatorbernite when torbernite spontaneously dehydrates

23

True or False, Americium is a transuranic and an actinide element.

	TRUE
	FALSE

24

The rarest naturally occurring element on Earth is named

25

True or False, Curium is a transuranic element.

	TRUE
	FALSE

26

Uranophane is a rare calcium uranium

hydrate mineral.

27

True or False, Berkelium is an actinide element.

	TRUE
	FALSE

28

Red ochre is a natural pigment composed of what likely source of red?

29

True or False, Californium is a transuranic element.

	TRUE
	FALSE

30

Match up the crystal with the mineral

uraninite - A

monazite - B

pitchblende - C

thorianite - D

.

.

.

.

31

Yes or No, Einsteinium is an actinide element.

	Yes
	No

32

A gamma-ray spectrum for autunite is likely to show peaks for Ra-226,

and Bi-214.

33

True or False, Fermium is an actinide element.

	TRUE
	FALSE

34

True or False, Fermium isotopes have been found in precambrian carbonate rocks from Sao Paulo State.

	TRUE
	FALSE

35

Yes or No, Mendelevium is an actinide element.

	Yes
	No

36

Yes or No, Nobelium is an actinide element.

	Yes
	No

37

Yes or No, Lawrencium is an actinide element.

	Yes
	No

38

Yes or No, The symbol for the element livermorium is Lm.

	Yes
	No

Hypotheses

1. Transuranics may be found in rocks and minerals where heavy elements including actinides occur.

See also

External links

• International Astronomical Union
• NASA's National Space Science Data Center
• The SAO/NASA Astrophysics Data System

{{Radiation astronomy resources}}