C.2 EOY10

Question 1

How are elements arranged in the periodic table

Answer 1

• By atomic number

Question 2

Why do elements in the same group react similarly?

Answer 2

As they have the same number of electrons in their outershell

Question 3

Metal properties

Answer 3

• Conduct electricity
• Higher Melting point
• Ductile
• Malleable

Question 4

Non metal properties

Answer 4

• Electrical insulator (expect carbon)
• Gain or lose electrons turning into ions

Question 5

Where are metals found

Answer 5

• Left hand side and centre

Question 6

Where are non metals

Answer 6

• Right hand corner (above staircase)

Question 7

Group 0

Answer 7

• Nobel Gases
• Have 8 electrons in their outershell
• Very stable
• Monotomic gases
• Highest Boiling point at bottom

Question 8

Group 7

Answer 8

• Halogen
• Coloured gases

Question 9

Reaction of Halogen

Answer 9

• Become less reactive down the group

Question 10

Displacemnet Reaction

Answer 10

A more reactive halogen displaces a less reactive halogen

Question 11

Size when you go down a group

Answer 11

• Number of shells occupied by electrons increase
• Becomes larger

Question 12

Effect of increased size of electrons

Answer 12

• Large atoms lose electrons more easily going down a group
• Large atoms gain electrons less easily going down a group

Question 13

Why is it easier to lose/ harder to gain electrons at the bottom of the group

Answer 13

• Negative electrons are further away form positive nucleus
• Inner electrons shield the outer electrons