Ch. 3 Vocab

Question 1

Smallest unit of a chemical element

Answer 1

Atom

Question 2

A substance in which the atoms of two or more elements bond together

Answer 2

Chemical compound

Question 3

A solid in which all the atoms are arranged in a regular, repeating pattern

Answer 3

Crystal

Question 4

a thing that is composed of two or more separate elements; a mixture

Answer 4

Compound

Question 5

Tiny negatively charged particles that orbit the nucleus

Answer 5

Electron

Question 6

A substance in which all of the atoms have the same number of protons

Answer 6

Element

Question 7

An atom with a different number of electrons and protons.

Answer 7

Ion

Question 8

Substance that physical objects are made of

Answer 8

Matter

Question 9

a naturally occurring, inorganic, crystalline solid with a characteristic chemical composition

Answer 9

Mineral

Question 10

the smallest possible amount of a chemical substance

Answer 10

Molecule

Question 11

Neutral particle in the nucleus of an atom

Answer 11

Neutron

Question 12

Center of an atom, made of protons and neutrons.

Answer 12

Nucleus

Question 13

Positively charged particle in a nucleus

Answer 13

Proton

Question 14

mineral containing silicon atoms bonded to oxygen atoms

Answer 14

Silicate

Question 15

the tendency of a mineral to break along certain planes to make smooth surfaces

Answer 15

Cleavage

Question 16

amount of mass per unit of volume of a substance

Answer 16

Density

Question 17

the way a mineral breaks when it is not broken along a cleavage plane

Answer 17

Fracture

Question 18

the ability of a rock to resist scratching

Answer 18

Hardness

Question 19

the way light reflects off of the surface of a mineral

Answer 19

Luster

Question 20

The color of the powder in a mineral

Answer 20

Streak

Question 21

Molten rock that has reached earths surface

Answer 21

Lava

Question 22

A solid mixture of minerals or mineral grains

Answer 22

Rocks

Question 23

Any material that is cut and polished to use in jewelry

Answer 23

Gemstone

Question 24

Mineral deposit that contains enough minerals to be mined for profit

Answer 24

Ore