Lanthanides, Actinides and all groups - interactive way with audio narration

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Groups of the Periodic Table

Explore Groups 1–18, Lanthanides and Actinides

Learn • Listen • Revise • Test Your Knowledge

📚 How to Use This Learning Page

Choose any topic from the index. Read its explanation, learn its uses, listen to the audio narration, and practise the important question and answer.

Audio uses your browser's speech synthesis. Available voices and pronunciation depend on your device.

🗂️ Clickable Index

Groups 1–8

Groups 9–18

Inner Transition Series

Welcome to the Periodic Table!

Select any group from the index above to begin your learning journey.

The modern periodic table contains 18 groups and 7 periods. Lanthanides and actinides are commonly shown in two separate rows below the main table.

🎯 Quick Revision

Important Question: Why do elements in the same group generally have similar chemical properties?

Answer: Elements in the same group generally have similar outer-shell electron configurations. For main-group elements, they have the same number of valence electrons, which strongly influences their chemical properties.

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Understand the elements, discover their properties, and connect chemistry with everyday life.

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