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 Form 2 Chemistry lessons on chemical families

Meaning of Alkali metals with examples

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Answer Text:
1. The Alkali metals.
- Are the elements with one valence electron and hence in group I of the periodic table.
- All are metallic in nature.
- The members of the family in order down the group is as follows:
-Lithium
-Sodium
-Potassium
-Rubidium
-Caesium
-Francium
-Electron arrangement of the first three alkali metals.
figchemicalfamilies22820201147.JPG
Diagram: Part of periodic table showing the alkali metals
figchemicalfamilies22820201148.JPG


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