Periodicity

Question 1

left block

Answer 1

s block

Question 2

middle block

Answer 2

d block

Question 3

right block

Answer 3

p block

Question 4

bottom block

Answer 4

f block

Question 5

atomic radius across a period

Answer 5

decreases

increased nuclear charge

Question 6

atomic radius across a group

Answer 6

increases

Question 7

1st IE across a period

Answer 7

general increase

Question 8

decrease in IE, P to S

Answer 8

Sulphur has an outer electron in a pair in the 3p orbital; repulsion

Question 9

decrease in Mg to Al

Answer 9

Mg has outer electron in 3s, Al is in 3p which are easier to remove as they are further

Question 10

Si boiling point

Answer 10

highest

macromolecular; strong covalent structure

Question 11

Na, Mg, Al boiling point

Answer 11

high

metallic bonding

increases from Na to Al

Question 12

P, S, Cl boiling points

Answer 12

low

VDW forces

P4: 2nd
S8: biggest
Cl2: 3rd
- bigger molecules have higher boiling point

Question 13

Ar boiling point

Answer 13

lowest

weak VDW

monoatomic

Question 14

periodicity

Answer 14

Repeating pattern/trends (of physical or chemical properties/reactions)