Chemistry · Periodic Classification
In the modern periodic table, which options correctly identify the shortest and longest periods containing elements (excluding Actinides and Lanthanides series listed separately)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Shortest Period: Period 2, Longest Period: Period 7
- 2Shortest Period: Period 1, Longest Period: Period 4
- 3Shortest Period: Period 1, Longest Period: Period 6✓
- 4Shortest Period: Period 2, Longest Period: Period 6
Correct answer
Shortest Period: Period 1, Longest Period: Period 6
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