1.

The effective nuclear charge experienced by an electron in the sub shell depends on the shielding faced by it due to inner electrons. Thus among given options, highest nuclear charge is experienced by 2p 3sub shell as it is nearest to nucleus among the given options.

Answer»

Answer:

The shielding EFFECT explains why valence-shell electrons are more easily removed from the ATOM. The effect ALSO explains atomic size. The more shielding, the further the valence shell can spread out and the bigger ATOMS will be. The effective nuclear charge is the net positive charge experienced by valence electrons.

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