Correct order of s.p.d.f.block.in.shielding effect
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s > p > d > f. This the correct order of shielding effect as s subshell is nearer to the nucleus.
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The correct order of shielding effect is - s orbitals > p orbitals> d orbitals> f orbitals.
The ability of the nucleus to hold the electrons towards itself is considered as the screening effect. As the electrons move away from the nucleus towards the outside, the nuclear forces do not attract the outermost electrons as effectively as it holds the inner electrons. This is because the inner electrons shield or screen the nuclear forces from reaching the outer electrons.
Therefore, the inner ‘s’ orbital has the highest shielding effect when compared to the outer ‘f’ orbital.
The ability of the nucleus to hold the electrons towards itself is considered as the screening effect. As the electrons move away from the nucleus towards the outside, the nuclear forces do not attract the outermost electrons as effectively as it holds the inner electrons. This is because the inner electrons shield or screen the nuclear forces from reaching the outer electrons.
Therefore, the inner ‘s’ orbital has the highest shielding effect when compared to the outer ‘f’ orbital.
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