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Period 5

Period 5

Contains the 4d transition series.

What changes

Across a period, properties change predictably.

Moving left to right increases nuclear charge while electrons enter the same principal shell — the key to several periodic trends.

Atomic radius ↓Ionisation energy ↑Electronegativity ↑
18

Elements in this period

37RbRubidiumAlkali metal38SrStrontiumAlkaline earth metal39YYttriumTransition metal40ZrZirconiumTransition metal41NbNiobiumTransition metal42MoMolybdenumTransition metal43TcTechnetiumTransition metal44RuRutheniumTransition metal45RhRhodiumTransition metal46PdPalladiumTransition metal47AgSilverTransition metal48CdCadmiumTransition metal49InIndiumPost-transition metal50SnTinPost-transition metal51SbAntimonyMetalloid52TeTelluriumMetalloid53IIodineHalogen54XeXenonNoble gas
Explore a group →Compare two elements →
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