TNPSC bilingual study article

Seven Periods: Atomic-Number Ranges and Capacities

The seven periods contain 2, 8, 8, 18, 18, 32 and 32 places across atomic-number spans 1–118.

1 minute readUpdated 21 Aug 2026

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ENGLISH PUBLIC PREVIEW

The seven periods contain 2, 8, 8, 18, 18, 32 and 32 places across atomic-number spans 1–118.

தமிழ் பொது முன்னோட்டம்

ஏழு கிடைமட்டத் தொடர்களில் 1–118 அணு எண் வரம்பில் முறையே 2, 8, 8, 18, 18, 32, 32 இடங்கள் உள்ளன.

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