00:01
So this question wants us to explain effective nuclear charge and shielding.
00:26
So the effective nuclear charge, let me just start from basic explanation, that would better.
00:35
So you know the nucleus has the proton and the neutron and the proton is positively charged and the nutrient is neutral.
00:44
It does not charge.
00:45
Therefore the effective charge on the nuclear is positive.
00:50
And then you know the nucleus is surrounded by shell containing electrons.
01:00
There's shells of electron.
01:03
So nucleus being positively charged, we attract electrons that is negatively charged contained in the shell according to just the basic electrostatic law as a colombic attraction.
01:19
So, but the thing is that effect or the nuclear effect that is felt by electron in the first shell is greater than that felt by electron in the second shell.
01:34
And the one in the second shell is greater than the one felt by the electron in the third shell...