The Periodic Table

Question 1

How are elements arranged in the periodic table

Answer 1

By their unique standards Atomic Number

Question 2

What is a vertical column in the periodic table called?

Answer 2

A group

Question 3

What is a horizontal row in the periodic table called

Answer 3

a period

Question 4

What is on the left side of the periodic table

Answer 4

Metals are on the left side

Question 5

What is on the right side of the periodic table

Answer 5

Non-metals

Question 6

Where is hydrogen on the periodic table?

Answer 6

The left side but it is a non-metal gas

Question 7

What are the properties of metals?

Answer 7

They are solid and shiny at room temperature. They conduct heat.

Question 8

What is the name of the Liquid Metal

Answer 8

Mercury

Question 9

Do metals conduct heat?

Answer 9

Yes

Question 10

What do you call a substance which allows electricity to pass through it?

Answer 10

Conductor

Question 11

What do you call a substance which does not allow electricity to pass through it?

Answer 11

Insulator

Question 12

What conducts electricity?

Answer 12

Metals

Question 13

How is the periodic table organised?

Answer 13

Groups and periods

Question 14

What do elements in the same group all have?

Answer 14

Similar chemical properties

Question 15

What are the 3 important groups in the periodic table

Answer 15

Group 1 - The Alkali Metals
Group 7 - The Halogens
Group 8 - The Noble Gases

Question 16

What are alkali metals

Answer 16

Very reactive with oxygen and water.
They are stored under oil to prevent them from reacting with air
They are all solid

Question 17

Why are alkali metals stored in oil

Answer 17

The prevent them reacting with air

Question 18

What are halogens?

Answer 18

Halogens are all non metal elements
They are very reactive
Iodine is a solid, bromine is a liquid and all the rest are gases
Halogens have good antibacterial properties

Question 19

Which Halogen is a solid?

Answer 19

Iodine

Question 20

Which halogen is a liquid

Answer 20

Bromine

Question 21

What are noble gases

Answer 21

They are all unreactive non-metal gases
When electricity passes through them they are bright colours

Question 22

What happens to noble gases when electricity passes through them

Answer 22

They create a bright colour

Question 23

What are compounds

Answer 23

2 or more elements which are chemically bonded together

Question 24

If a compound end in “ide” how many elements does it have

Answer 24

It has 2 elements

Question 25

Why do scientists sometimes draw their chemicals

Answer 25

Because they have long names

Question 26

Word equation have 2 sides

Answer 26

The left side shows the reactants The right shows the products

Question 27

When writing a word equation what separates both sides

Answer 27

An arrow (pointing right)

Question 28

What is an example of a word equation

Answer 28

Carbon + oxygen -> Carbon dioxide

Question 29

Elements and Symbols What do all elements have in the periodic have?

Answer 29

A specific letter (linked to the their name) and an atomic number

Question 30

What is a pure substance

Answer 30

A substance which one type of susbstance in it. For example pure water only has H2O molecules. Sea water has salt, sand and other substance in it.

Question 31

What is a mixture

Answer 31

A substance which has 2 or more substances mixed together but they are not chemically joined

Question 32

Who would you separate substances (2 methods)

Answer 32

Distillation Filtration

Question 33

Describe how you would separate substances using filtration

Answer 33

Put filter paper in the funnel Put the funnel in a beaker Pour in the solution The solid and liquid will separate

Question 34

When would you use filtration

Answer 34

When separating a solid from a liquid

Question 35

Describe distillation

Answer 35

Put solution into a beaker Boil it to the correct temperature The 2 liquid will separate

Question 36

When would you use distillation

Answer 36

To separate 2 liquids

Question 37

What do you call a substance which dissolves in liquid

Answer 37

Soluble

Question 38

What do you call a substance which does not dissolve in a liquid

Answer 38

Insoluble

Question 39

What is Chromatography?

Answer 39

A technique used to separate liquids from a mixture or liquids E.g find all the colours of dye in a coloured pen

Question 40

What would you use to break up compounds

Answer 40

Electricity

Question 41

What is electrolysis

Answer 41

When electricity is used to break up compounds