C1 - 7 part 1

Question 1

How many types of atoms are there in an element?

Answer 1

1

Question 2

How many atoms are in a compound?

Answer 2

More than one and they are chemically bonded together

Question 3

Around how many elements are in the periodic table?

Answer 3

100

Question 4

Where do the protons and neutrons exist?

Answer 4

In the dense core at the centre of the atom, the nucleus

Question 5

What are the layers called that the elements orbit around the nucleus?

Answer 5

The shells

Question 6

What is the mass and charge of a proton?

Answer 6

M = 1 , C = +1

Question 7

What is the mass and charge of a neutron?

Answer 7

M = 1 , C = 0

Question 8

What is the mass and charge of a electron?

Answer 8

M = almost 0 , C = -1

Question 9

What does the mass number represent?

Answer 9

The number of protons and neutrons

Question 10

What does the atomic number represent?

Answer 10

The number of protons

Question 11

How do you calculate the number of neutrons of an element?

Answer 11

Mass number - atomic number

Question 12

What is the electron arrangement written as?

Answer 12

2 , 8 , 8

Question 13

What are the columns called in the periodic table?

Answer 13

Groups

Question 14

What do elements in the same group have in common?

Answer 14

They have the same number of electrons in their outer shell

Question 15

What is the name given to group 0?

Answer 15

The noble gases

Question 16

What is the reactivity of group 0 elements?

Answer 16

Their outer shells are full so they are unreactive and don’t form bonds

Question 17

What is the name given to group 1 elements?

Answer 17

Alkali metals

Question 18

What is the name given to group 7 elements?

Answer 18

Halogens

Question 19

Going horizontally on a periodic table what is the name given to that type of row?

Answer 19

Periods

Question 20

What is the group number?

Answer 20

Number of electrons in the outer shell

Question 21

What is the period number?

Answer 21

The number of shells of electrons

Question 22

What happens when an element gains electrons?

Answer 22

It becomes negative

Question 23

What happens when an element loses electrons?

Answer 23

It becomes positive

Question 24

What do isotopes have the same number of and different number of?

Answer 24

They have the same number of PROTONS and different number of NEUTRONS

Question 25

What is the name for something when they have different atomic forms of the same element?

Answer 25

An isotope

Question 26

What happens if you change the number of protons?

Answer 26

You get a different element

Question 27

What happens if you change the number of neutrons?

Answer 27

You get the same element but a different isotope

Question 28

What happens if you change the number of electrons?

Answer 28

It is the same element but a different ion

Question 29

Define pure?

Answer 29

When there is only one type of substance

Question 30

What is a mixture?

Answer 30

Two or more substances that are not chemically bonded

Question 31

What is a compound?

Answer 31

Two or more substances that ARE chemically bonded

Question 32

What is an element?

Answer 32

Only one type of atom

Question 33

Which side of an equation are the reactants and products?

Answer 33

Reactants are on the left and the products are on the right

Question 34

As you go down group 1 what happens to the reactivity?

Answer 34

It goes from lowest to highest

Question 35

As you go down group 1 what happens to the atomic radius?

Answer 35

It goes from smallest to largest

Question 36

As you go down group 1 what happens to the melting/boiling point?

Answer 36

It goes from highest to lowest

Question 37

As you go down group 1 what happens to the hardness?

Answer 37

It goes from highest to lowest

Question 38

Going down group 7 what happens to the reactivity?

Answer 38

It decreases

Question 39

Going down group 7 what happens to the boiling point?

Answer 39

It increases

Question 40

What happens during ionic bonding?

Answer 40

It transfers electrons when atoms gain electrons to form charged particles called ions

Question 41

What type of structure does an ionic compound have?

Answer 41

A lattice structure

Question 42

What type of arrangement does an ionic compound have?

Answer 42

A regular arrangement

Question 43

Does an ionic compound have a high or low boiling point?

Answer 43

High

Question 44

What do ionic compounds conduct at what state?

Answer 44

Electricity when molten or dissolved

Question 45

What groups are most likely to form ions?

Answer 45

Groups 1 , 2 , 6 and 7

Question 46

What is covalent bonding?

Answer 46

When atoms share electrons

Question 47

What are the 2 types of covalent structures, and what are their properties?

Answer 47

1 - Simple molecular = Strong bonds, weak forces of attraction, low melting and boiling points and they don't conduct electricity. 2 - Giant covalent structure = Strong bonds and high boiling/melting points, they don't conduct electricity, e.g. graphite and diamond

Question 48

What id diamond a form of?

Answer 48

Carbon

Question 49

How is diamond bonded together and what structure has It got?

Answer 49

Diamond is covalently bonded together and each carbon atom is joined to 4 other carbon atoms making a giant covalent structure

Question 50

Is diamond soluble or insoluble in water, and what does diamond look like??

Answer 50

It is insoluble and it is shiny

Question 51

Can diamond conduct electricity, why?`

Answer 51

No, because there are no free-moving delocalised electrons or ions

Question 52

Why is a lot of energy needed to break the carbon atoms in diamond?

Answer 52

As there is strong covalent bonds, so this makes the boiling/melting point very high

Question 53

What type of network is diamond?

Answer 53

A 'covalent network'

Question 54

What is another giant covalent (begins with G)?

Answer 54

Graphite

Question 55

What does graphite consist many layers of?

Answer 55

Hexagons

Question 56

In graphite what is each layer joined by and to how many?

Answer 56

They are joined by strong covalent bonds to ONLY 3 other atoms

Question 57

What are the bonds like between each layer?

Answer 57

There are no covalent bonds but weak ones between the layers so they can slide over one another

Question 58

In graphite what is the 4th electron for?

Answer 58

It is delocalised between the layers

Question 59

Can graphite conduct electricity?

Answer 59

Yes

Question 60

What is another giant covalent bond (begins with S)?

Answer 60

Silicon dioxide

Question 61

In silicon dioxide what is each silicon atom joined to?

Answer 61

4 oxygen atoms and each is bonded to 2 silicon atoms

Question 62

What can silicon dioxide be used for and where can it be found?

Answer 62

For lining furnaces and is mainly found on a beach

Question 63

Does silicon dioxide conduct electricity?

Answer 63

No