Ch 3

Question 1

Covalent Bond

Answer 1

share electrons to complete electron shell

Question 2

Ionic Bond

Answer 2

form between positive and negatively charged ions

gives up an electron

Question 3

Metalically Bonded

Answer 3

nuclei and inner shell of leectrons float in sea of electrons

Question 4

Mineral

Answer 4

naturally occurring solid
crystalline structure
definable chemical composition
most minerals are inorganic

Question 5

glass vs. mineral

Answer 5

glass cannot hold their crystalline structure over time

Question 6

crystal

Answer 6

single, continuous piece of crystalline solid

Question 7

luster

Answer 7

silky
glassy
satiny
pearly

how light scaters

Question 8

hardness

Answer 8

10- diamond
7- quartz
3-calcite
1-talc

Question 9

specific gravity

Answer 9

represents density of mineral

Question 10

cleavage

Answer 10

tendency to break along places of weak bonding

Question 11

fractures

Answer 11

no lattice planes of weakness

Question 12

one plane of cleavage

Answer 12

sheets of paper

mica

Question 13

two planes of cleave that intersect at 90degrees

Answer 13

like sheets but with boxy edges

pyroxene

Question 14

three mutually perpendicular planes of cleavage

Answer 14

breaking into cubes

halite

Question 15

three planes of inclined cleavage

Answer 15

rhombus like cubes

Question 16

muscovite

Answer 16

Mineral

like mica
2.0 hardness
one dimension of cleavage
fairly resistant to weathering

Question 17

Calcite

Answer 17

Mineral

constitutes most of limestone
effervescent (fizzes with HCl (HCl acid)

Question 18

Rock forming silicates

Answer 18

Olivine – independent tetrahedra
Pyroxene group – tetrahedra are arranged in chains
Amphibole group – tetrahedra are arranged in double chains