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15 cards from this deck
Oxide layer forms on surface
In oil (to prevent reaction with O₂ and moisture)
Low density - most float
Lower than many other metals
1 electron
Easily lose 1 outer electron
Increases
Outer electron further from nucleus (easier to lose)
Decreases
Metal oxide
Metal hydroxide + hydrogen
Purple (alkaline solution)
Float, move, and fizz
Lilac
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