Group 1 – Alkali metals (Edexcel GCSE Chemistry): Flashcards
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Practise the cards
15 cards from this deck
Why do alkali metals look dull on the outside
Why do alkali metals look dull on the outside
Oxide layer forms on surface
Why are alkali metals stored in oil
Why are alkali metals stored in oil
Prevent reaction with oxygen & moisture in air
Density of alkali metals
Density of alkali metals
Low density, so most float
How many electrons in outer shell of Group 1 metals
How many electrons in outer shell of Group 1 metals
1 electron
Why are Group 1 metals very reactive
Why are Group 1 metals very reactive
1 electron in outer shell, easily lost
Reactivity trend down Group 1
Reactivity trend down Group 1
Increases down the group
Why reactivity increases down Group 1
Why reactivity increases down Group 1
Outer electron further from nucleus, more easily lost
Density trend down Group 1
Density trend down Group 1
Increases down the group
Melting point trend down Group 1
Melting point trend down Group 1
Decreases down the group
Boiling point trend down Group 1
Boiling point trend down Group 1
Decreases down the group
Product of alkali metal + oxygen
Product of alkali metal + oxygen
Metal oxide
Products of alkali metal + water
Products of alkali metal + water
Metal hydroxide (alkali) + hydrogen gas
Behaviour of alkali metals in water
Behaviour of alkali metals in water
Float, move, and fizz on surface
Sodium's behaviour in water
Sodium's behaviour in water
Moves quicker, forms ball shape
Potassium's behaviour in water
Potassium's behaviour in water
Moves quickly, has lilac flame