Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Science 9 > HOLY MOLY WE HAVE A TEST > Flashcards

HOLY MOLY WE HAVE A TEST Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Who organized the periodic table?

A

Dimitri Mendeleev

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the horizontal rows of the periodic table called?

A

Periods

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the columns of the periodic table called and how much are there?

A

Families, 1-18

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How is the periodic table organized?

A

organized according to physical and chemical properties. Each element contains its atomic number, symbol, ion charge, and average atomic mass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are elements?

A

Pure substances that cant be broken down or separated into other substances

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How did Dimitri Mendeleev organize them

A

wrote them on separate cards including density, colour, melting and boiling point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the Atomic Number?

A

Number or protons in the nucleus, always a whole number

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the atomic mass?

A

Average mass of the elements atom, always a decimal, increases with atomic number

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the Ion Charge?

A

electric charge when an atom gains/loses electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is an ion?

A

an electrically charge atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Left side of the table

A

usually positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Right side of the table

A

Usually negative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Elements in same column form ion with elements that have the same charge?

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what types of elements are on the left and middle of the table?

A

Metals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What type of elements are in the upper right corner?

A

Non-Metals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What type of elements are form a staircase leading towards the lower right corner?

A

Metalloids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What do chemical families have in common?

A

They have similar chemical properties

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Tell me About Alkali Metals?

A

First group, highly reactive, react with oxygen and water, low melting points, soft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Tell me about Alkaline Earth Metals

A

Group 2, very reactive but less than alkali metals, react with water, produce bright flames (fireworks), will burn air if heated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Tell me about Halogens

A

Group 17, non-metals, highly reactive, fluorine and chlorine are gases at room temp, iodine is solid at room temp, bromine is liquid at room temp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Tell me about noble gases

A

Used in lights, at room temp they’re colourless and odourless, most stable and unreactive, some glow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

How do you find the amount of neutrons in an atom

A

atomic mass - atomic number #

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Who do metalloids share the same properties with?

A

metals and non metals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Tell me about Metals

A

solid, shiny, good conductors of heat and electricity, malleable, ductile

25
Q

Tell me about Non-Metals

A

not very shiny, some are gases, some are solids, only bromine is liquid, suck at conducting heat and electricity, brittle, non ductile

26
Q

Tell me about metalloids

A

solids, can be shiny or dull, sometimes conducts electricity, doesn’t conduct heat, brittle, non ductile

27
Q

What are the smallest part of an element

A

Atom

28
Q

Where are atoms?

A

Everythwere

29
Q

How many tyoes of atoms make up an element

A

One

30
Q

What is an ion?

A

electrically charged atom either lost or gained electrons

31
Q

Why are noble gas elements stable?

A

filled valence shells, usually dont loose/gain electrons

32
Q

What does chemistry concern?

A

all things concerning matter, studies changes in matter

33
Q

WHat is matteR?

A

anything that takes up space, anything with mass and volume, amount of matter in an object

34
Q

What does matter have?

A

Atoms and molecules

35
Q

What is volume?

A

The amount of space taken up by an object

36
Q

What kinds of properties were listed above?

A

quantatative

37
Q

does weight = mass?

A

weight does not equal mass because weight is determined by gravity. You will still contain the same amount of matter anywhere

38
Q

What are the two types of change?

A

chemical and physical

39
Q

Tell me about chemical change

A

is when a substance changes into a new substance, usually very hard to reverse

40
Q

Tell me about physical change

A

When a substance changes but doesn’t make a new thing. easy to change back and forth

41
Q

How do you identify chemical changes?

A

colour change, small (sulfur), new mater created (wood- ash - smoke), creating gas (smell), heat/ light (blew up)

42
Q

How do you identify physical changes?

A

colour change (painting), melting (candle wax), matter is the same but state changes (ice), shape change (broken coffee cup)

43
Q

What are the three different states?

A

solid: definite shape, volume, takes up specific amount of space; liquid: definite volume, takes space of container; gas: no shape, no volume, determined my container

44
Q

Tell me about particle theory

A

ALL matter has particles, different substances + different particles, theres always ALWAYS space between particles, CONSTANTLY moving, particles are ATTRACTED to one another

45
Q

Tell me about solids

A

tightly packed, vibrating against eachother

46
Q

Tell me about liquids

A

moving past one another

47
Q

Tell me about gases

A

moving freely, far apart

48
Q

Tell me about KMT

A

more kinetic movement = more heat

49
Q

How does KMT relate to state change?

A

more particles moving + more heat = the change of state; water boiling = water particles moving faster and faster, they keep moving faster until they become steam

50
Q

What is solidification?

A

when something freezes, freezing point

51
Q

What is melting point?

A

sol - li

52
Q

What is boiling point?

A

liq - gas

53
Q

What is sublimation

A

solid turning into a gas (dry ice)

54
Q

What is deposition?

A

gas turning into solid (water vapour to ice)

55
Q

What are qualitatitive ways to describe matter?

A

colour, state, malleability (how much you can spread it out), ductility (how much you can make it stretch), crystallinity, magnetism

56
Q

what are some quantitative ways to describe matter?

A

solubility (how much of it is going to dissolve it water (x grams is giong to dissolve in x amount of water), conductivity, viscosity (how much time it takes to pour something), density, melting and boiling point

57
Q

What are pure substances?

A

substancs that cannot be broken down or seperated into other substances

58
Q

What are compounds?

A

substances made of two or more elements whose particles are combined

Science 9 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions