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Science > Unit B: Topic 1 + 2 > Flashcards

Unit B: Topic 1 + 2 Flashcards

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Biology 101 flashcards
1
Q

Timeline of Models

A

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

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2
Q

Democritus

A

400 BC
Atomos

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3
Q

Dalton

A

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

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4
Q

Thomson

A

Raisin Bun Model

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5
Q

Nagaoka

A

Planetary Model (Rutherford Model)
Discovered Nucleus
Worked with Rutherford

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6
Q

Rutherford

A

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

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7
Q

Bohr

A

Bohr Model
Electrons on Levels
Planetary

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8
Q

Quantum

A

Doesn’t show levels

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9
Q

Matter

A

Anything that takes up space

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10
Q

What is Chemistry

A

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

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11
Q

WHMIS

A

Workplace Hazardous Material Info System

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12
Q

MSDS + Examples

A

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

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13
Q

Solid to Gas

A

Sublimation

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14
Q

Gas to Solid

A

Deposition

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15
Q

Physical Properties

A

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

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16
Q

Chemical Property

A

How a substance interacts with other substances

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17
Q

Chemical Change

A

occurs when a new substance is formed

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18
Q

Pure Substance

A

Made of one kind of matter

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19
Q

Element + Ex

A

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

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20
Q

Compound + Ex

A

More than one element bonded together
Water (H2o)

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21
Q

Mixture

A

Combination of two pure substances

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22
Q

Mechanical Mixture + Ex

A

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

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23
Q

Solution + Ex

A

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

24
Q

Suspension + Ex

A

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

25
Q

Colloid + Ex

A

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

26
Q

Aqueous Solution

A

One dissolved in water

27
Q

Chemical v Property Change

A

Property can usually be undone and chemical you cant

28
Q

Evidence of chemical change

A

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

29
Q

What must we look for in a chemical change

A

A NEW SUBSTANCE BEING FORMED

30
Q

Aristotle

A

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

31
Q

Dmitri Mendeleev

A

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

32
Q

Staircase Line

A

Division between metals and non-metals

33
Q

Metals

A

Left of Staircase Line
- shiny, malleable, ductile

34
Q

Non-metals

A

Right of Staircase
can be solid liquid or gas

35
Q

Metalloids

A

Elements on staircase line
both metal and non-metal

36
Q

Groups/Families Definitions

A

groupings going down the periodic table
similar reactivity

37
Q

Rows/Periods Definition

A

groups going across periodic table
similar mass

38
Q

Names of groups/families

A

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

39
Q

Alkali Metals

A

very reactive
solid
1+ charge

40
Q

Alkaline Earth Metals

A

reactive
solid
2+ charge

41
Q

Halogens

A

reactive non-metals
most are gases
1- charge

42
Q

Noble Gas

A

Non-reactive gas
no charge

43
Q

Transition Metals

A

numerous different properties
numerous amounts of charges

44
Q

Names of rows/periods

A

6 - lanthanide series
7 - actinide series

45
Q

Lanthanide Series

A

starts at element 57
3+ charge

46
Q

Actinide Series

A

starts at element 90

47
Q

Non metal reactivity + most reactive

A

More reactive the more right (Excludes Noble gases)
Fluorine

48
Q

Metal reactivity + most reactive

A

more reactive when lower and more left
francium

49
Q

Atomic Number

A

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

50
Q

Atomic Mass

A

Protons and Neutrons together

51
Q

What does Carbon-14 mean?

A

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.

52
Q

Isotopes

A

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

53
Q

Ions

A

Atoms with a charge - or +

54
Q

What does it mean if an Ion has a negative charge

A

Gained Electrons

55
Q

What does it mean if an Ion has a positive charge

A

Lost electrons

56
Q

What are the subatomic particles

A

Protons
Electrons
neutrons

57
Q

What are the subatomic particles

A

Protons
Electrons
neutrons

Science (5 decks)

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