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Periodic table Groups Explained !! (With 1-18 Group Names)
Group (periodic table) - Wikipedia
Periodic Table Groups and Periods - Science Notes and Projects
Periodic Table: Periods, Groups, and Families - Chemistry Learner
Periodic table | Definition, Elements, Groups, Charges, Trends,
Periodic table - Elements, Groups, Blocks | Britannica
Group | Definition & Facts | Britannica
Element Families on the Periodic Table - Science Notes and …
Periodic Table of Elements - American Chemical Society
How the Periodic Table groups the elements | Live Science