2.1 Periodicity

Question 1

Where is the s-block

Answer 1

Group 1
Group 2

Question 2

Where is the d-block

Answer 2

Transition metals

Question 3

Where is the p-block

Answer 3

Group 3
Group 4
Grpup 5
Group 6
Group 7
Group 0

Question 4

Where is the f-block

Answer 4

Radioactive elements

Question 5

State how atomic radius changes along a period

Answer 5

Along the period, atomic radius decreases

Question 6

Explain how and why atomic radius changes along a period

Answer 6

Along the period, atomic radius decreases
due to increased nuclear charge
for the same amount of shells
pulling the outer electorns closer, because of the greater attraction
therefore decresing the radius

Question 7

State how atomic radius changes down a group

Answer 7

Down a group, atomic radius increases

Question 8

Explain how and why atomic radius down the group

Answer 8

Down each icnrement in the group
another electron shell is added
increasing the distance between the outer electron and then nucelus
reducing the power of attraction
increasing the shielding aswell
reducing the nuclear charge ofb attraction and increasing the atomic radius

Question 9

State how ionisation energy changes along the period

Answer 9

Along the period, ionisation energy increases

Question 10

Explain how and why ionisation energy changes along a period

Answer 10

Ionisation energy increases along the period
because of the decreasing atomic radius and the increasing nucelar charge
holding the outer elctrons stronger
therefore requiring more energy to remove the electrons and ionise the atome

Question 11

State how ionisation energy changes down the group

Answer 11

Down the group, ionisation energy decreases

Question 12

Explain how and why ionisation energy changes down the group

Answer 12

Down the group, ionisation energy decreases
as the attraction between the nucleus and outer electron decreases due to shielding and a larger atomic radius
therefore less energy is requred to remove the outer electron