2.3: Use Knowledge of Trends in Group 1 to Predict the Properties of Other Alkali Metals

ALKALI  METALS: Group 1 Metals that commonly include Lithium, Sodium and  Potassium

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PROPERTIES OF OTHER ALKALI METALS (RUBIDIUM, CAESIUM AND FRANCIUM):

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• As the reactivity of Alkali Metals increases down the Group, Rubidium, Caesium and Francium will react more vigorously with Air and Water
• Lithium is at the top so will be the least reactive, while Francium is at the bottom so will be the most reactive (Francium is rare and radioactive so is difficult to confirm predict reaction)

PREDICTED REACTION WITH WATER:

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ELEMENT	REACTION
RUBIDIUM	Explodes with sparks
CAESIUM	Violent explosion due to rapid production of heat and Hydrogen
FRANCIUM	*Too Reactive*