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The 15 pages that link to Effective nuclear charge, each with the reason it gives.

• Periodic tableRelated: Its variation across periods helps explain changing atomic size and reactivity.

• Ionization energyRelated: Greater effective nuclear charge generally binds an electron more strongly.

• Electron shellRelated: It helps explain why outer shells are less tightly bound than inner ones.

• Periodic trendsRelated: Its increase across a period draws electrons closer and underlies several major trends.

• Lanthanide contractionRelated: Across the series, rising effective nuclear charge pulls the electron cloud closer to the nucleus.

• Electron affinityRelated: It helps explain how strongly an atom attracts an added electron.

• Atomic radiusRelated: Across a period, increasing effective nuclear charge generally pulls the electron cloud inward.

• Principal quantum numberRelated: Shielding changes orbital energies and sizes associated with a given principal quantum number.

• Inert-pair effectRelated: Imperfect shielding in heavy atoms affects the relative energies of valence s and p orbitals.

• Valence shellRelated: It helps determine the energy and size of valence orbitals across the periodic table.

• Period 3 elementRelated: It generally rises across Period 3, drawing valence electrons closer to the nucleus.

• Period 5 elementRelated: Its increase across the row helps explain changing atomic size and ionization energy.

• Period 2 elementRelated: It generally rises across Period 2 as proton number increases.

• Period 4 elementRelated: Its changing strength helps explain Period 4 trends in atomic size and ionization energy.

• Period 6 elementRelated: Its changes across the row help explain shrinking atomic radii and rising ionization energies.