C4 - The Group 1 Elements

What are the properties of caesium and rubidium?
They react vigorously with water. Hydrogen gas is given off. The metal reacts with water to form an alkali - the hydroxide of the metal.
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What is the balanced symbol equation for lithium and water?
2Li + 2H20 -> 2LiOH + H2
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How can we predict the properties of rubidium and caesium?
By knowing the melting points, boiling points, appearance and conductivity of lithium, sodium and potassium.
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Why are atoms of group 1 alkali metals similar?
Because they all have one electron in their outer shell
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What is formed when atoms of alkali metals react?
A full outer shell, to create a stable electronic structure. An ion, which has one more positive charge in its nucleus than negative electrons in the shells, so it becomes a positive ion
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What makes an alkali metal more reactive?
the easier it is for an atom to lose one electron
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What is oxidation?
When electrons are lost.
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What can a flame test find out?
If lithium, sodium or potassium is present in a compound.
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Other cards in this set

Card 2

Front

What is the balanced symbol equation for lithium and water?

Back

2Li + 2H20 -> 2LiOH + H2

Card 3

Front

How can we predict the properties of rubidium and caesium?

Back

Preview of the front of card 3

Card 4

Front

Why are atoms of group 1 alkali metals similar?

Back

Preview of the front of card 4

Card 5

Front

What is formed when atoms of alkali metals react?

Back

Preview of the front of card 5
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