The Periodic Table

Question 1

Appearance of iron fillings

Answer 1

Grey solid

Question 2

Appearance of iron fillings with magnets

Answer 2

Moves

Question 3

Appearance of sulfur

Answer 3

Yellow solid

Question 4

Appearance of sulfur with magnets

Answer 4

No movement

Question 5

Appearance of iron and sulfur mixture

Answer 5

Green solid with yellow specs

Question 6

Appearance of iron and sulfur mixture with magnets

Answer 6

Moves

Question 7

Appearance of iron (2) sulfide

Answer 7

Black solid

Question 8

Appearance of iron (2) sulfide with magnets

Answer 8

No movement

Question 9

what is an element

Answer 9

A substance that consists of only one type of atom

Question 10

Liquids on the periodic table

Answer 10

Bromine and mercury

Question 11

Gases on the periodic table (6)

Answer 11

• hydrogen
• nitrogen
• oxygen
• chlorine
• fluorine
• noble gases

Question 12

What are the other elements other than liquids and gases

Answer 12

Solids at room temperature and pressure

Question 13

4 physical properties of metals

Answer 13

• good conductors of electricity
• lustrous, have a shiny surface when freshly cut
• high melting points (group 1 metals have low melting points)
• sonorous

Question 14

4 physical properties of non-metals

Answer 14

• electrical insulators (except graphite)
• are often dull when freshly cut
• brittle
• poor conductors of heat

Question 15

What is an atom

Answer 15

The smallest part of an element that can exist

Question 16

What is a compound

Answer 16

A substance consisting of two or more different elements, which are chemically combined

Question 17

What is a molecule

Answer 17

A particle that consists of two or more atoms covalently bonded together

Question 18

Describe the layout of mendeleeves periodic table

Answer 18

In order of their increasing mass (elements) numbers but left gaps for undiscovered elements

Question 19

What was absent from mendeleeves table and why

Answer 19

The noble gases were absent, as they were u discovered becuase they are invisible and totally un reactive

Question 20

How was the elements arranged in mendeleeves table

Answer 20

The metals and non-metals were separated and were put into groups and periods

Question 21

How is the modern periodic table arranged

Answer 21

In order of increasing atomic number

Question 22

What is discovered and added to the modern periodic table

Answer 22

The noble gases

Question 23

What was separated in the modern periodic table

Answer 23

The transition metals now form a separate block

Question 24

Is there gaps in the modern periodic table

Answer 24

No

Question 25

3 groups

Answer 25

- alkali metals - halogens - noble gases

Question 26

What are alkali metals stored under and why

Answer 26

Oil, to stop it reacting with oxygen and water vapour

Question 27

Why does reactivity increase downwards for alkali metals

Answer 27

The outer shell electron becomes further from the nucleus, there fore there is less attraction, so the electron is lost faster

Question 28

Why do alkali metals have similar properties

Answer 28

They are all trying to lose 1 electron

Question 29

Metal + water makes .....

Answer 29

Metal hydroxide + hydrogen

Question 30

Observations for lithium reaction (6)

Answer 30

- fizzes as bubbles of gas produced - floats - moves on surface - heat produced - metal disappears - colourless solution formed

Question 31

Observations for sodium reaction (7)

Answer 31

- fizzes as bubbles of gas produced - floats - moves on surface - heat produced - metal disappears - colourless solution formed - silver ball formed

Question 32

Observations for potassium reaction (8)

Answer 32

- burns with lilac flame - crackle at the end - fizzes as bubbles of gas produced - floats - moves around - heat produced - metal disappears - colourless solution is formed

Question 33

Why is rubidium and caesium to dangerous to show

Answer 33

They have explosive reactions

Question 34

Equation for lithium reaction

Answer 34

2li + 2H20 makes 2LiOH + H2

Question 35

Equation for sodium reaction

Answer 35

2Na + 2H2O makes 2NaOH + H2

Question 36

Equation for potassium reaction

Answer 36

2K + 2H20 makes 2KOH + H2

Question 37

Which alkali metal forms an ion fastest

Answer 37

Francium

Question 38

Gas elements in the halogens

Answer 38

Chlorine | Fluorine

Question 39

Liquid of the halogens

Answer 39

Bromine

Question 40

Solids of the halogens

Answer 40

Iodine | Astatine

Question 41

How reactive is fluorine compared to astatine and why

Answer 41

Fluorine is much more reactive, this is because the the halogens are trying to gain 1 electron and because astatine’s outer shell is much further from the nucleus is is much harder for it to gain 1 extra electron

Question 42

What happens when iodine sublimes

Answer 42

A purple vapour is released

Question 43

Test for chlorine gas and the result

Answer 43

Damp universal indicator paper changes to red then bleaches white

Question 44

Colour of fluorine

Answer 44

Yellow

Question 45

Colour of chlorine

Answer 45

Yellow-green

Question 46

Colour of bromine

Answer 46

Red-brown

Question 47

Colour of iodine

Answer 47

Grey-black

Question 48

Colour of astatine

Answer 48

Black

Question 49

Why do the halogens have similar properties

Answer 49

They are all trying to gain 1 electron

Question 50

Properties of the noble gases (3)

Answer 50

- colourless - un reactive - all have full outer shells

Question 51

Most commonly used transition metals (3)

Answer 51

- copper - iron - silver

Question 52

Properties of the transition metals (3)

Answer 52

- higher melting points - less reactive with water - harder and more dense than group 1 metals

Question 53

Colour of copper oxide

Answer 53

Black

Question 54

Colour of copper carbonate

Answer 54

Green

Question 55

Colour of hydrated copper sulfate

Answer 55

Blue

Question 56

Colour of copper salts

Answer 56

Usually blue in solution