Minerals Flashcards

Earth's Materials and Systems

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1
Q

A substance that cannot be broken down into simpler substances by chemical means is called what?

A

An element

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2
Q

There are more than how many known elements?

A

100

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3
Q

How many elements occur naturally?

A

90

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4
Q

The elements are organized by their properties in a table called what?

A

Periodic Table

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5
Q

What type of elements are good conductors of heat and electricity?

A

Metals

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6
Q

All elements are made up of what?

A

Atoms

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7
Q

What are the 3 subatomic particles that make up an atom?

A

Protons, Neutrons, Electrons

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8
Q

The number of protons in the nucleus of an atom is called what?

A

Atomic number

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9
Q

Electrons occupy regions in the atom called what?

A

Energy levels

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10
Q

Atoms with the same number of protons but different numbers of neutrons are called what?

A

Isotopes

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11
Q

A substance that consists of 2 or more elements that are chemically bonded together is known as what?

A

Compound

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12
Q

The elements in a compound are held together by forces called what?

A

Chemical bonds

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13
Q

The most reactive elements are found in what two groups on the periodic table?

A

Groups 1 & 17

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14
Q

What are the 3 types of chemical bonds?

A

Ionic, Covalent, Metallic

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15
Q

What is a naturally occurring, inorganic solid with a crystalline structure called?

A

A mineral

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16
Q

All minerals share these 5 characteristics:

A
  1. Naturally Occurring
  2. Solid Substance
  3. Orderly Crystalline Structure
  4. Definite Chemical Composition
  5. Generally Considered Inorganic
17
Q

What are the 4 ways minerals form?

A
  1. Crystallization from magma
  2. Precipitation
  3. Changes in pressure & temperature
  4. Formation from hydrothermal solutions
18
Q

How many mineral groups are there?

A

4

19
Q

What are the 2 most abundant elements on the Earth’s surface?

A

Silicon & Oxygen

19
Q

If a mineral contains carbon, oxygen, and one more metallic element, then it belongs to which mineral group?

A

Carbonates

20
Q

Sulfates and sulfides are minerals that contain which element?

A

Sulfur

21
Q

Halides are minerals that contain what type of ion?

A

Halogen

22
Q

What is the color of a mineral in its powdered form called?

A

Streak

23
Q

What term is used to describe how light is reflected from the surface of a mineral?

A

Luster

24
Q

The Mohs scale ranges from what number to what number?

A

10 (hardest) to 1 (softest)

25
Q

Which number on the Mohs scale is the softest mineral?

A

1

26
Q

Which mineral is the hardest mineral based on the Mohs scale?

A

Diamond

27
Q

What is the uneven breakage of a mineral called?

A

Fracture

28
Q

What is the formula to solve for density?

A

Mass (m)
-​————- = Density (d)
Volume (v)

29
Q

What is a mineral’s streak?

A

Is the color of a mineral in its powdered form