Group 1 (alkali metals)
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Last updated 4:48 PM on 4/19/23
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8 Terms
1
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Alkali metals qualities
Soft, low densities
2
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What are alkali metals melting points like?
Relatively low
3
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Lithium reaction with water
Floats, fizzes steadily, becomes smaller until it disappears
4
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Sodium reaction with water
Melts to form a ball, moves on surface, fizzes rapidly, disappears
5
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Potassium reaction with water
Melts and floats, moves quickly on surface, self-ignites, sparks, a lilac flame, sometimes a small explosion
6
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What are the similarities between the water reactions of the alkali metals?
They all fizz, float and disappear.
7
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How do alkali metals become more reactive?
As they go down the periodic table.
8
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Why is there a difference in reactivity dependent on positition on the periodic table?
Because the outermost electron is further away down the periodic table due to more shells and therefore has less attraction.