Back
to top
chem a level will be the death of me
Watch
Announcements
Page 1 of 1
Go to first unread
Skip to page:
Hi,
Would anyone kindly explain the difference between:
a) shielding
b) distance between nucleus and outer e-
I thought they were interchangeable, but somebody told me they are not.
Surely as no of shells increases, shielding increases and distance b/w nucelus and outer e- also increases, both of which mean attraction b/w nucleus & outer e- decreases.
Would anyone kindly explain the difference between:
a) shielding
b) distance between nucleus and outer e-
I thought they were interchangeable, but somebody told me they are not.
Surely as no of shells increases, shielding increases and distance b/w nucelus and outer e- also increases, both of which mean attraction b/w nucleus & outer e- decreases.
0
reply
Report
#3
I think rather than being interchangeable, the shielding effect happens when new shells are added and that causes weakening of attraction of outer e to nucleus. Shielding doesn’t itself determine the distance between the nucleus and outer electrons - that is determined by shell number. Essentially shielding is a separate effect (caused by increased shell number) but in combination with distance from nucleus, the combined effect is weakened attraction of outer e to nucleus ... so they’re two separate factors resulting in the same thing if that makes sense?
0
reply
X
Page 1 of 1
Go to first unread
Skip to page:
Quick Reply
Today on TSR
-
Ofqual consultationTeachers to use 'mini-exams' and other work to decide grades
- Is it too late to do well in my A-levels?
- What Harry Potter house are you in?
- 2021 wellbeing blog launch
- Student tips on lockdown mental health