random

Question 1

wt happens 2 IE down group & wt reasons

Answer 1

decreases coz
- larger atomic radius
- greater shielding due 2 extra electron shells
- weaker nuclear attraction for electron removed

Question 2

wt does graph of 1st IE p3 look like

Answer 2

increase but slight decrease aluminium still above sodium then increase till phosphorus and decrease silicon then increase c & ar

Question 3

give rzns y trend shows in p3

Answer 3

• general trend in 1st ie coz increasing nuclear charge, shielding stays same leading 2 stronger nuclear attraction on electron removed
• drops in Al & S
• reasons for drop Al= electron removed higher energy p sub shell so slightly less energy needed 2 remove it
• reason for p= first paired electron in p sub shell so slight repulsion so less energy 2 remove

Question 4

y does ie drop for Al & P for p3

Answer 4

• reasons for drop Al= electron removed higher energy p sub shell so slightly less energy needed 2 remove it
• reason for p= first paired electron in p sub shell so slight repulsion so less energy 2 remove

Question 5

p2 trend IE

Answer 5

all first ie higher than those p3
(smaller atomic radius, less shielding so stronger nuclear attraction on electron removed)

• dips again for boron & oxygen

Question 6

FOR IE TRENDS REMEMBER DIPS IN THESE ELEMENTS

Answer 6

BORON & OXY
AL& SULF
3,6