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.

What group of the periodic table contains the most reactive metals?

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What are the alkaline metals mentioned in the text?

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Why is lithium stored under oil?

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How is rubidium stored to keep it away from air?

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What can be said about the reactivity of caesium based on the information provided?

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