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C2 Alkali Metals

Edexcel C2 Alkali Metals

State 4 observations when you place an alkali metal in water the 4"f": Float on water, fizz, flame and gets fmaller
What are the product of reaction between Sodium and water? Sodium Hydroxide and Hydrogen gas
Write the word equation for the reaction of Lithium and water Lithium + Water --> Lithium Hydroxide + Hydrogen; LEARN PATTERN
Write the formula of potassium hydroxide KOH
What is the formula of Hydrogen gas? H2
Write the symbolic equation for the reaction of potassium and Water 2 K + 2 H2O --> 2 KOH + H2; learn the pattern (metal+water--> hydrogen + metal hydroxide); CHECK FORMULAE; this is not an easy equation to balance so maybe learn it altogether?
Which alkali metal is the most reactive? Li, Na or K K
CHALLENGE Explain the pattern of reactivity in the Alkali metals As you go down the group, there are more shells, the single electron on the outer shell is further away from the nucleus, less attracted to the nucleus, so less ENERGY is needed to remove the electron, so the metals become more reactive
Created by: UrsulineChem