The Periodic Table of Elements - Alkali Metals, Alkaline Earth Metals and Transition Metals | Children's Chemistry Book
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Alkali Metals: Elements In The First Column Of The Periodic Table HowStuffWorks | The Sixth Element Periodic Table | montebayperla.com
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Chem4Kids.com: Elements & Periodic Table: Alkali Metals
Vettoriale Stock Sodium on periodic table of elements. Alkali metal, with symbol Na from Latin natrium, and with atomic number 11. Sixth most abundant element in Earth crust, essential for all animals
The Alkali Metals: Group 1 of the Periodic Table - Chemistry Revision