The particle model and 3 states of matter

Question 1

what’s the model called?

Answer 1

particle model

Question 2

What are the 3 states of matter called?

Answer 2

Solid, liquid and gases

Question 3

Do solids have strong forces of attraction?

Answer 3

Yes, they have strong forces of attraction that holds them close together in a fixed position.

Question 4

Do solids vibrate?

Answer 4

Yes, solids vibrate

Question 5

If you heat solids more what happens?

Answer 5

heat more then start to vibrate more reaching their melting point and the breaking free from their bonds

Question 6

Do liquids have a weak force of attraction?

Answer 6

Yes, they have weak attractions

Question 6

Are liquids able to move around freely?

Answer 6

Yes, they are free to move around

Question 7

Do gases have very weak attractions?

Answer 7

Yes, they have very weak attractions

Question 8

Do gases travel around at any direction?

Answer 8

Yes, they travel at any direction

Question 9

Which state of matter has the highest density?

Answer 9

Solids

Question 10

Which state of matter has a lower density?

Answer 10

Liquids

Question 11

Which state of matter has the lowest density?

Answer 11

Gases

Question 12

What’s the name of the top number in the periodic table?

Answer 12

mass no

Question 13

What des the top number represent?

Answer 13

total number of neutrons + protons

Question 14

What’s the name of the bottom number in the periodic table?

Answer 14

atomic no

Question 15

What does the bottom number represent?

Answer 15

how many protons they are

Question 16

How do you find the neutrons?

Answer 16

take away the mass no with the atomic no. For example Li has a mass no of 7 and an atomic no of 3. 7- 3 = 4

Question 17

How do you know how many electrons they are?

Answer 17

the protons have the same number has electros

Question 18

Do protons have a positive charge or a negative?

Answer 18

they have a positive charge

Question 19

Do protons have a mass of 1?

Answer 19

Yes, protons have a mass of 1

Question 20

Do protons have a +1 charge?

Answer 20

Yes, protons have a +1 charge

Question 21

Do neutrons have a charge?

Answer 21

No, neutrons do not have a charge

Question 22

Since neutrons don’t have a charge what are they called?

Answer 22

neutral

Question 23

Do neutrons have a mass of 1?

Answer 23

Yes, they have a mass of 1

Question 24

Do electrons have a positive charge or a negative?

Answer 24

they have a negative charge

Question 25

Do electrons have a +1 charge?

Answer 25

No, they have a -1 charge

Question 26

Do electrons have a mass of 1?

Answer 26

No, they have a mass of 1/2000

Question 27

Define what an element is

Answer 27

in an element all the atoms are the same

Question 28

Define what an compound is

Answer 28

compounds contain two or more different elements chemically combined

Question 29

Define what an mixture is

Answer 29

Different elements or compounds but not chemically combined together

Question 30

What are shells called?

Answer 30

energy levels

Question 31

What happens if the energy levels are closer and further away?

Answer 31

if the energy levels are further away the more higher the energy but if the closer the lower it will have.

Question 32

What happens if the atom absorbs energy and emits it?

Answer 32

if an electron absorbs electromatic radiation it will jump to a higher energy level. Eventually it will come down and emit electromatic radiation and go back to a lower energy level.

Question 33

What happens if he outer most electron absorbs so much energy?

Answer 33

if the outer most electron absorbs so much energy it will completely remove itself from the atom.

Question 34

What are Isotopes?

Answer 34

Same number of protons but different number of neutrons.

Question 35

Do elements in the same group share similar properties?

Answer 35

Yes, elements in the same group share similar properties

Question 36

What are some examples?

Answer 36

similar melting points and boiling points and react in similar - ways

Question 37

What are Group 1 metals called?

Answer 37

Alkali metals

Question 38

What are Group 2 metals called?

Answer 38

Alkali earth metals

Question 39

What are Group 7 metals called?

Answer 39

Halogens

Question 40

What are Group 0 metals called?

Answer 40

Noble gases

Question 41

What is the central block called (middle)

Answer 41

Transition metals

Question 42

Are group one metals highly reactive?

Answer 42

Yes, group one metals are highly reactive

Question 43

What are some properties that they share? (Group one)

Answer 43

The metals are shiny and good conductors of electricity

Question 44

As you go down the elements in group one... (What happens?)

Answer 44

Reactivity increases Melting point decreases Boiling point decreases

Question 45

Do alkali metals react vigorously with water or not?

Answer 45

Yes, alkali metals react vigorously with water (group one metals)

Question 46

Are the halogens metals colourful elements, and the colours darken as you go down the group?

Answer 46

Yes, the halogens metals are colourful elements and the colours darken as you go down the group.

Question 47

At room temperature what happens with group seven metals?

Answer 47

At room temperature, fluorine and chlorine are gases, bromine is a liquid and iodine and astatine are solids.

Question 48

As you go down the elements in group 7 what happens?

Answer 48

Reactivity decreases Melting point increases Boiling point increases

Question 49

Are noble gases unreactive?

Answer 49

Yes, noble gases are unreactive

Question 50

Are noble gases colourless gases at room temperature?

Answer 50

Yes, noble gases are colourless gases at room temperature

Question 51

As you go down the elements in group zero? (What happens?)

Answer 51

Melting point increases Boiling point increases

Question 52

Give one type of natural background radiation

Answer 52

Radioactive rocks certain rocks are radioactive

Question 53

Give other type of natural background radiation

Answer 53

Cosmic rays from space

Question 54

Give one type of man made background radiation

Answer 54

Fall out from nuclear weapon testing Nuclear weapons testing realised radioactive isotopes

Question 55

Give other type of man made background radiation

Answer 55

Nuclear accidents

Question 56

Give one example of radiation being used in medicine

Answer 56

Radiotherapy

Question 57

Give other example of radiation being used in medicine

Answer 57

medical traces

Question 58

Example what Radiotherapy is

Answer 58

it's used to treat cancer. Destroys particular cells that we don't want like cancer cells. radiation can cause and treat cancer. we call this process radiotherapy.

Question 59

What does externally mean?

Answer 59

externally sources normally emit gamma rays that are targeted at the cancer from lots of different angles so only the cancer site gets the highest dose.

Question 60

Where do we put the radioactive source? (internally)

Answer 60

We put the radioactive source either inside the cancer itself or next to. This method uses beta. Other healthy cells might get damaged.

Question 61

Example what medical traces is

Answer 61

help to detect problems inside the body. We put certain radioactive isotopes inside the person's body. We do this by injecting them or getting them to sallow. Then we can track the movement of the isotopes around the body. By tracking the radiation they emit.