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The 100 pages that link to Electron configuration, each with the reason it gives.

• Periodic table blocksRelated: Configurations reveal which subshell is being filled across each block.

• ZirconiumRelated: Zirconium’s valence-electron arrangement helps explain its metallic bonding and chemical reactivity.

• 4f electronRelated: It records how many 4f electrons a lanthanide contains.

• Lead(II) ionRelated: Lead’s electron configuration helps explain why losing two electrons is especially favorable.

• Manganese(II)Related: Mn²⁺ has a half-filled 3d shell, giving it a high-spin d⁵ configuration.

• NeonRelated: Neon’s configuration ends in a filled second shell, accounting for its stability.

• Square planar molecular geometryRelated: Metal-ion electron configurations influence the stability of square-planar complexes.

• YtterbiumRelated: Ytterbium’s filled 4f shell and two outer 6s electrons help explain its chemistry.

• EuropiumRelated: Europium’s half-filled 4f shell in its ground state underlies its unusual oxidation-state behavior.

• RutherfordiumRelated: Its predicted configuration helps explain rutherfordium’s expected resemblance to hafnium.

• Valence shellRelated: It reveals which shell is outermost and how many electrons occupy it.

• HafniumRelated: Hafnium’s electron arrangement helps explain its metallic bonding and chemical behavior.

• LutetiumRelated: Its filled 4f shell helps distinguish lutetium’s chemistry from that of earlier lanthanides.

• PnictogenRelated: The outer configuration ns²np³ underlies common pnictogen bonding behavior.

• CaesiumRelated: Caesium’s outer electron occupies the 6s orbital, shaping its chemical and spectroscopic behavior.

• EinsteiniumRelated: Its 5f electrons help explain einsteinium’s chemical behavior.

• Group 10 elementRelated: Their d-electron configurations help explain both shared behavior and exceptions within group 10.

• Main-group elementRelated: Configurations reveal the s- or p-orbital occupancy behind group membership.

• Boron groupRelated: The shared outer configuration distinguishes group 13 from neighboring columns.

• Group 11 elementRelated: Their outer-electron arrangements help explain Group 11's shared metallic behavior.

• Particle statisticsRelated: Fermi–Dirac occupancy and exclusion determine the structure of electron shells.

• Period 3 elementRelated: Electron configurations explain the row’s changing valence-shell structure.

• Period 5 elementRelated: Configurations across this row show the filling of 5s, 4d, and 5p orbitals.

• PraseodymiumRelated: Praseodymium’s [Xe] 4f³ 6s² configuration helps explain its oxidation states and magnetic behavior.

• UnpenthexiumRelated: Predictions for element 156's electron arrangement are uncertain at such high nuclear charge.

• Group 8 elementRelated: The members' d-electron arrangements help explain recurring chemical behavior.

• History of the periodic tableRelated: Recurring valence-electron patterns explain why elements in a column share chemical behavior.

• Period 6 elementRelated: Configurations distinguish period 6 elements and reveal their valence-electron patterns.

• Triplet oxygenRelated: Oxygen’s molecular electron configuration identifies its ground state as a triplet.

• UnhexpentiumRelated: Predicted electron arrangements would determine how element 165 fits chemical periodicity.

• UnpentuniumRelated: Any predicted chemical properties of element 155 depend on its electron configuration.

• UntriniliumRelated: Calculations of a neutral element 130 depend on its still-unverified configuration.

• Atomic and molecular structureRelated: Electron configurations summarize how electrons occupy an atom’s available states.

• Atomic propertiesRelated: Electron arrangement underlies many measured chemical and spectroscopic properties.

• Group 12 elementRelated: The filled d subshell and outer s electrons distinguish the group’s ground-state configurations.

• Group 3 elementRelated: Valence configurations help explain similarities among Group 3 metals.

• Hund's rule of maximum multiplicityRelated: Hund's rule supplies one of the ordering principles used to write ground-state configurations.

• NebuliumRelated: Oxygen's electronic energy levels determine the wavelengths of its forbidden lines.

• Neon compoundsRelated: Neon’s closed-shell configuration accounts for its strong resistance to ordinary chemical reactions.

• Orbital hybridisationRelated: It identifies the valence orbitals considered for hybridisation.

• Period 1 elementRelated: Hydrogen and helium differ by whether their 1s orbital is half-filled or full.

• UnbienniumRelated: Calculations of element 129’s electron configuration would depend on relativistic quantum models.

• UnquadenniumRelated: The predicted configuration of element 149 depends on uncertain extended-period ordering.

• UnsepttriumRelated: Element 173’s configuration is theoretical and may depart from simple periodic trends.

• UntribiumRelated: Predicted configurations are used to infer untribium's position and possible chemical properties.

• UntripentiumRelated: Predicted configurations help determine where element 135 might fit in the periodic table.