HOLY MOLY WE HAVE A TEST

Question 1

Who organized the periodic table?

Answer 1

Dimitri Mendeleev

Question 2

What are the horizontal rows of the periodic table called?

Answer 2

Periods

Question 3

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

Answer 3

Families, 1-18

Question 4

How is the periodic table organized?

Answer 4

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

Question 5

What are elements?

Answer 5

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

Question 6

How did Dimitri Mendeleev organize them

Answer 6

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

Question 7

What is the Atomic Number?

Answer 7

Number or protons in the nucleus, always a whole number

Question 8

What is the atomic mass?

Answer 8

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

Question 9

What is the Ion Charge?

Answer 9

electric charge when an atom gains/loses electrons

Question 10

What is an ion?

Answer 10

an electrically charge atom

Question 11

Left side of the table

Answer 11

usually positive

Question 12

Right side of the table

Answer 12

Usually negative

Question 13

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

Answer 13

Yes

Question 14

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

Answer 14

Metals

Question 15

What type of elements are in the upper right corner?

Answer 15

Non-Metals

Question 16

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

Answer 16

Metalloids

Question 17

What do chemical families have in common?

Answer 17

They have similar chemical properties

Question 18

Tell me About Alkali Metals?

Answer 18

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

Question 19

Tell me about Alkaline Earth Metals

Answer 19

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

Question 20

Tell me about Halogens

Answer 20

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

Question 21

Tell me about noble gases

Answer 21

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

Question 22

How do you find the amount of neutrons in an atom

Answer 22

atomic mass - atomic number #

Question 23

Who do metalloids share the same properties with?

Answer 23

metals and non metals

Question 24

Tell me about Metals

Answer 24

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

Question 25

Tell me about Non-Metals

Answer 25

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

Question 26

Tell me about metalloids

Answer 26

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

Question 27

What are the smallest part of an element

Answer 27

Atom

Question 28

Where are atoms?

Answer 28

Everythwere

Question 29

How many tyoes of atoms make up an element

Answer 29

One

Question 30

What is an ion?

Answer 30

electrically charged atom either lost or gained electrons

Question 31

Why are noble gas elements stable?

Answer 31

filled valence shells, usually dont loose/gain electrons

Question 32

What does chemistry concern?

Answer 32

all things concerning matter, studies changes in matter

Question 33

WHat is matteR?

Answer 33

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

Question 34

What does matter have?

Answer 34

Atoms and molecules

Question 35

What is volume?

Answer 35

The amount of space taken up by an object

Question 36

What kinds of properties were listed above?

Answer 36

quantatative

Question 37

does weight = mass?

Answer 37

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

Question 38

What are the two types of change?

Answer 38

chemical and physical

Question 39

Tell me about chemical change

Answer 39

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

Question 40

Tell me about physical change

Answer 40

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

Question 41

How do you identify chemical changes?

Answer 41

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

Question 42

How do you identify physical changes?

Answer 42

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

Question 43

What are the three different states?

Answer 43

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

Question 44

Tell me about particle theory

Answer 44

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

Question 45

Tell me about solids

Answer 45

tightly packed, vibrating against eachother

Question 46

Tell me about liquids

Answer 46

moving past one another

Question 47

Tell me about gases

Answer 47

moving freely, far apart

Question 48

Tell me about KMT

Answer 48

more kinetic movement = more heat

Question 49

How does KMT relate to state change?

Answer 49

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

Question 50

What is solidification?

Answer 50

when something freezes, freezing point

Question 51

What is melting point?

Answer 51

sol - li

Question 52

What is boiling point?

Answer 52

liq - gas

Question 53

What is sublimation

Answer 53

solid turning into a gas (dry ice)

Question 54

What is deposition?

Answer 54

gas turning into solid (water vapour to ice)

Question 55

What are qualitatitive ways to describe matter?

Answer 55

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

Question 56

what are some quantitative ways to describe matter?

Answer 56

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

Question 57

What are pure substances?

Answer 57

substancs that cannot be broken down or seperated into other substances

Question 58

What are compounds?

Answer 58

substances made of two or more elements whose particles are combined