Unit B: Topic 1 + 2

Question 1

Timeline of Models

Answer 1

Democritus
Dalton
Thomson
Nagaoka
Rutherford
Bohr
Quantum
(Donald, Duck, Took, New, Rubber, Boots, Quading)

Question 2

Democritus

Answer 2

400 BC
Atomos

Question 3

Dalton

Answer 3

Billiard Ball Model
Atom
Dalton - Dolphin - pool - pool ball

Question 4

Thomson

Answer 4

Raisin Bun Model

Question 5

Nagaoka

Answer 5

Planetary Model (Rutherford Model)
Discovered Nucleus
Worked with Rutherford

Question 6

Rutherford

Answer 6

Worked with Nagaoka
Nuclear Model
Discovered Nucleus
Rutherford Model (Planetary Model)

Question 7

Bohr

Answer 7

Bohr Model
Electrons on Levels
Planetary

Question 8

Quantum

Answer 8

Doesn’t show levels

Question 9

Matter

Answer 9

Anything that takes up space

Question 10

What is Chemistry

Answer 10

The study of the properties of matter and the changes it has

Question 11

WHMIS

Answer 11

Workplace Hazardous Material Info System

Question 12

MSDS + Examples

Answer 12

Material Safety Data Sheet
- Chemical Make up
- Safety Precautions
- First Aid
- Handling instructions
- How to dispose of Chemical

Question 13

Solid to Gas

Answer 13

Sublimation

Question 14

Gas to Solid

Answer 14

Deposition

Question 15

Physical Properties

Answer 15

Color
Lustre
Melting
Boiling
Hardness
Malleablilty
Ductile
Chrystal Shape
Density
Sollubility
Conductibilty

Question 16

Chemical Property

Answer 16

How a substance interacts with other substances

Question 17

Chemical Change

Answer 17

occurs when a new substance is formed

Question 18

Pure Substance

Answer 18

Made of one kind of matter

Question 19

Element + Ex

Answer 19

Can’t be broken down into simpler form
Off periodic table
Iron

Question 20

Compound + Ex

Answer 20

More than one element bonded together
Water (H2o)

Question 21

Mixture

Answer 21

Combination of two pure substances

Question 22

Mechanical Mixture + Ex

Answer 22

One substance in another substance and you can see the different parts
Trail Mix

Question 23

Solution + Ex

Answer 23

One substance dissolved in another and you can’t see the difference
Iced Tea

Question 24

Suspension + Ex

Answer 24

A cloudy mixture where tiny particles are suspended in another
Orange Juice with pulp

Question 25

Colloid + Ex

Answer 25

A cloudy mixture with particles so small that they can't be easily separated Milk

Question 26

Aqueous Solution

Answer 26

One dissolved in water

Question 27

Chemical v Property Change

Answer 27

Property can usually be undone and chemical you cant

Question 28

Evidence of chemical change

Answer 28

Change in color or odor Bubbles (precipitate) Release of energy (exothermic) Absorption of energy (endothermic) Solid is formed

Question 29

What must we look for in a chemical change

Answer 29

A NEW SUBSTANCE BEING FORMED

Question 30

Aristotle

Answer 30

Believed everything was made of fire, earth, water or air

Question 31

Dmitri Mendeleev

Answer 31

collected 63 elements in his time Ordered them by mass and chemical reactivity

Question 32

Staircase Line

Answer 32

Division between metals and non-metals

Question 33

Metals

Answer 33

Left of Staircase Line - shiny, malleable, ductile

Question 34

Non-metals

Answer 34

Right of Staircase can be solid liquid or gas

Question 35

Metalloids

Answer 35

Elements on staircase line both metal and non-metal

Question 36

Groups/Families Definitions

Answer 36

groupings going down the periodic table similar reactivity

Question 37

Rows/Periods Definition

Answer 37

groups going across periodic table similar mass

Question 38

Names of groups/families

Answer 38

Family 1 - Alkali Metals Family 2 - Alkaline Earth Metals Family 17 - Halogens Family 18 - Noble gas Family 3 to 12 - Transition metals

Question 39

Alkali Metals

Answer 39

very reactive solid 1+ charge

Question 40

Alkaline Earth Metals

Answer 40

reactive solid 2+ charge

Question 41

Halogens

Answer 41

reactive non-metals most are gases 1- charge

Question 42

Noble Gas

Answer 42

Non-reactive gas no charge

Question 43

Transition Metals

Answer 43

numerous different properties numerous amounts of charges

Question 44

Names of rows/periods

Answer 44

6 - lanthanide series 7 - actinide series

Question 45

Lanthanide Series

Answer 45

starts at element 57 3+ charge

Question 46

Actinide Series

Answer 46

starts at element 90

Question 47

Non metal reactivity + most reactive

Answer 47

More reactive the more right (Excludes Noble gases) Fluorine

Question 48

Metal reactivity + most reactive

Answer 48

more reactive when lower and more left francium

Question 49

Atomic Number

Answer 49

-How periodic table is numbered -same amount of protons and electrons in element

Question 50

Atomic Mass

Answer 50

Protons and Neutrons together

Question 51

What does Carbon-14 mean?

Answer 51

It is the element carbon but the mass is 14 instead of 12 like the periodical table says. The protons and neutrons stay the same.

Question 52

Isotopes

Answer 52

Different types of elements Different mass not atomic number. Carbon-14

Question 53

Ions

Answer 53

Atoms with a charge - or +

Question 54

What does it mean if an Ion has a negative charge

Answer 54

Gained Electrons

Question 55

What does it mean if an Ion has a positive charge

Answer 55

Lost electrons

Question 56

What are the subatomic particles

Answer 56

Protons Electrons neutrons

Question 57

What are the subatomic particles

Answer 57

Protons Electrons neutrons