Alkali Metals - Properties in Air

The video discusses the most reactive metals found in group 1 of the periodic table, known as alkaline metals. It covers lithium, sodium, potassium, rubidium, and caesium, highlighting their reactivity and storage methods. Lithium, sodium, and potassium are stored under oil and can be cut with a knife. Rubidium and caesium are stored in sealed glass containers to prevent reactions with oxygen. Caesium is so reactive that it can melt from the heat of a hand.

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