1.3 Metals

Question 1

Which is more reactive, Sodium or Potassium?

Answer 1

Potassium

Question 2

What is the big block of metals in the centre of the periodic table called?

Answer 2

They are the transition metals

Question 3

Sodium is a metal, true or false?

Answer 3

True

Question 4

What are groups 1 and 2 on the periodic table called?

Answer 4

Reactive metals

Question 5

What trends occur as you go down group 1, the alkali metals?

Answer 5

• More reactive
• lower melting point
• lower boiling point

Question 6

Calcium is a metal, true or false?

Answer 6

True!

Question 7

Why is it significant that all alkali metals have one outer electron?

Answer 7

It makes them very reactive and gives them all similar properties

Question 8

Transition metal’s compounds have dull colours, true or false?

Answer 8

False, they are very colourful. For example, potassium manganate(VII) is purple.

Question 9

Copper is an alkali metal or a transition metal?

Answer 9

It’s a transition metal

Question 10

Is potassium in group one or two?

Answer 10

One

Question 11

If rubidium is below potassium in group one of the periodic table, which is more reactive?

Answer 11

Rubidium

Question 12

Are transition metals good or bad conductors of heat and electricity?

Answer 12

They are good conductors of heat and electricity.

Question 13

What’s an ore?

Answer 13

A rock that contains enough metal or metal compound to make it economic to extract the metal

Question 14

How are more reactive metals extracted?

Answer 14

Electrolysis

Question 15

How are less reactive metals extracted?

Answer 15

Reaction with carbon or carbon monoxide.

Question 16

How is copper purified?

Answer 16

Electrolysis

Question 17

What makes copper useful for wiring?

Answer 17

It’s soft so easily bent and a good conductor of electricity.

Question 18

What makes copper useful for plumbing and making pipes and tanks?

Answer 18

It’s a good conductor of heat and doesn’t react with water.

Question 19

Can transition metals be bent into shape easily?

Answer 19

Yes

Question 20

What materials are transition metals useful for?

Answer 20

Construction materials.

Question 21

What’s an alloy?

Answer 21

A mixture of two or more elements, usually metals.

Question 22

Why are alloys harder than pure metals?

Answer 22

They contain atoms of different sizes, which distort the regular arrangements of atoms, making it more difficult for the layers to slide over each other.

Question 23

What do alkali metals all have in common?

Answer 23

They have to be stored in oil and handled with forceps

Question 24

What is the chemical symbol for Iron?

Answer 24

Fe - This is where the word ‘ferrous’ comes from.