Question

Explain how Neon's atomic size is smaller than Lithium's. Be through and concise in your answer. Also, include in your explanation Effective Nuclear Charge and Shielding Effect.

Answer 1

Answer:

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Explanation:

The shielding effect describes the balance between the pull of the protons on valence electrons and the repulsion forces from inner electrons.

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. It can be approximated by the equation: Zeff = Z – S, where Z is the atomic number and S is the number of shielding electrons.

Answer 2

Answer:

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