Chapter 1-4

Question 1

A compound which is formed from a metal and a non-metal consists of …

Answer 1

Ions

Question 2

In ionic bonding, the metal atoms lose electrons to form what

Answer 2

Positive ions

Question 3

Atoms with full shells are…

Answer 3

Stable

Question 4

When atoms lose or gain electrons they are trying to…

Answer 4

Fill their outer shell

Question 5

When metals form ions they gain what?

Answer 5

Electrons in their outer shell to form negative ions

Question 6

Group 1 and 2 elements are metals and they lose electrons to form…

Answer 6

Positive ions (cations)

Question 7

Group 6 and 7 are non metals. They gain electrons into…

Answer 7

Their outer shell to form negative ions(anions)

Question 8

What is the ionic equation:

Sodium atom is in group 1 so it loses an electron

Answer 8

Na = Na+ +e-

Question 9

Covalent bonding:

Are the metals which share pairs of electrons metal or non-metal

Answer 9

Non- metal

Question 10

Positively charged nuclei of the bonded atoms are attracted to…
By …

Answer 10

The shared pair of electrons by electrostatic forces

Question 11

Use dot and cross to show bonding in covalent compounds.However,

Answer 11

It doesn’t show relative sizes of atoms or how the atoms are arranged in space

Question 12

Lined structure connecting letters, has no 3D STRUCTURE however…

Answer 12

Shows covalent bonds with the lines

Question 13

3D model shows the atoms, the covalent bonds and their arrangement. Name a disadvantage

Answer 13

Doesn’t show where the electrons in the bonds have come from

Question 14

Diamond has a giant covalent structure, made up of carbon atoms .those strong covalent bonds take a lot of energy to break and give diamond a very high

Answer 14

Melting point

Question 15

Diamond doesn’t conduct electricity because….

Answer 15

It has no free electrons or ions

Question 16

Graphite is soft and slippery , why?

Answer 16

Because they are held together weakly, so they’re free to move over each other.

Question 17

Graphite high melting point

Answer 17

True or false

Question 18

Each carbon atom allows the graphite to…

Answer 18

Conduct electricity. Each carbon atom in graphite has one delocalised(free)

Question 19

Graphene is one layer of graphite.

Graphene is a singular sheet of carbon atoms joined together in hexagons

Answer 19

True ‘false

Question 20

Graphene Is two dimensional due to the sheet being one atom thick

Answer 20

True. False

Question 21

Graphene contains delocalised electrons do it conducts electricity through the structure

Answer 21

True false

Question 22

The mole equation

Answer 22

Mass in g divide mr

Question 23

Concentration equation

Answer 23

Distance travelled by solute divide distance travelled by solvent

Question 24

How many units on the side = distance, solvent

Answer 24

Normal measure form the dot = distance travelled by solvent

Question 25

Mobile phase in paper chromatography

Answer 25

Solvent, where molecules move. Liquid or gas

Question 26

Stationary phase

Answer 26

Filter paper doesn’t move

Question 27

Test for chlorine

Answer 27

Chlorine bleaches damp litmus paper , turning it white

Question 28

Oxygen test

Answer 28

Put a damp splint inside a test tube, oxygen will relight the glowing splint.

Question 29

Carbon dioxide test

Answer 29

Shake carbon dioxide with an aqueous solution(limewater) causing solution to go cloudy

Question 30

Test for hydrogen

Answer 30

If you hold a lit splint at the open end end of a test tube containing hydrogen, you’ll get a squeaky pop

Question 31

Modern periodic table

Answer 31

Laid out in order of increasing atomic number (proton)

Question 32

Vertical columns named...

Answer 32

Groups

Question 33

Group number tells us what...

Answer 33

How many electrons are in the outer shell