C1, C2, C3.

Question 1

What is an Ion?

Answer 1

An Ion is an atom or group of atoms that have lost or gained electrons.

Question 2

What is a Isotope?

Answer 2

Different forms of the same element which have the same amount of protons but different amount of neutrons.

Question 3

What is a Element?

Answer 3

Substances made up of atoms with the same amount of protons.

Question 4

What is the Atomic Number?

Answer 4

The Atomic Number tells you the amount of protons / electrons in a atom.

Question 5

What is the Mass Number?

Answer 5

The Mass Number tells you the total amount of protons + neutrons.

Question 6

Describe the layout of a atom / nucleus.

Answer 6

The Nucleus is in the center of atoms and has a positive charge. It is also where pretty much all the mass can be found. Orbiting the Nucleus is negatively charged electrons.

Question 7

What Combines to make a compound?

Answer 7

When elements react, atoms combine to make a compound.

Question 8

What is a Mixture?

Answer 8

A Mixture in chemistry is a lot of different things mixed together.

Question 9

Give an example of a Mixture.

Answer 9

Air is a mixture of gases mainly nitrogen, oxygen and carbon dioxide.

Question 10

In the 1800s how were elements arranged?

Answer 10

Elements were arranged by atomic weight.

Question 11

Now how are all of the elements in the periodic table arranged?

Answer 11

All of the elements in the periodic table are laid out in order of increasing atomic proton number.

Question 12

What do Elements with similar properties form in the periodic table?

Answer 12

Elements with similar properties from columns.

Question 13

What does the group number tell you?

Answer 13

How many electrons the atom has in its outer shell. For example group 7 elements all have 7 electrons in their outer shell.

Question 14

What do Metals form when they react?

Answer 14

Metals form positive ions when they react.

Question 15

What do Non-Metals form when they react.

Answer 15

Non-Metals normally form negative ions.

Question 16

Do Metals need much energy to remove electrons.

Answer 16

No, metals don’t. So it’s feasible for elements to form positive ions with a full outer shell.

Question 17

Can a Non-Metal form positive ions.

Answer 17

It is more difficult for them to. This is because they either have to lose lots of electrons or are too close to the nucleus, so have a strong attraction.

Question 18

What are some properties of Metals.

Answer 18

They all have metallic bonding so all similar. They’re strong, good at conducting heat and electricity and have high B and M points.

Question 19

What are some properties of Non-Metals?

Answer 19

They are dull looking, more brittle, aren’t always solids at room temp and have a lower density.

Question 20

What are Group 1 Metals known as.

Answer 20

They are known as the Alkali Metals.

Question 21

What are the trends as you go down Group 1?

Answer 21

They are: Increasing Reactivity, Lower melting and boiling points and a higher relative atomic mass.

Question 22

How do group 1 Metals react with water?

Answer 22

When they are put in water, they react to make hydrogen gas.

Question 23

How do group 1 Metals react with oxygen.

Answer 23

They can react with oxygen to form a metal oxide.

Question 24

Why are Group 1 metals so reactive.

Answer 24

They are very reactive because they only have 1 outer shell electron so it easily becomes 1+ ions.

Question 25

What are the Group 7 Elements Known as?

Answer 25

They are known as the halogens and are all Non-Metals.

Question 26

What are the trends for the Halogens as you go down?

Answer 26

They become less reactive, Higher melting and boiling points and higher relative atomic mass.

Question 27

Why do all the Halogens react in similar ways?

Answer 27

They all react in similar ways because they all have 7 electrons in there outer shell ( Group 7).

Question 28

What will happen between a reactive Halogen and a less reactive one?

Answer 28

A displacement reaction will occur between the two. E.g. Chlorine can displace bromine and iodine.

Question 29

What depends on the force between particles in state change.

Answer 29

The amount of energy needed to change the state of a substance.

Question 30

Does a stronger force between particles mean a Higher or Lower melting and boiling point.

Answer 30

A stronger force means a higher Melting and Boiling point ( harder to break).

Question 31

What is ionic Bonding?

Answer 31

Metal- Atoms transfering electrons to Non-Metal Atoms when they react.

Question 32

What is Covalent Bonding?

Answer 32

Covalent Bonding is when electrons are shared between Non-metals atoms. The amount shared depends on how many are needed to get a full outer shell.

Question 33

Explain Conductivity, relating to solid ionic substances.

Answer 33

Solid Ionic substances do not conduct electricity because there fixed in place and not free to carry charge.

Question 34

Explain Melting points, relating to Ionic substances.

Answer 34

Ionic substances have high melting points because of the electrostatic force between the oppositely charged ions.

Question 35

Are you working hard Enough?

Answer 35

NO!