Group 1 – Alkali metals (Edexcel GCSE Chemistry): Quizzes
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12 questions from this quiz
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Practise the questions
12 questions from this quiz
Why do alkali metals appear dull on the outside?
Why do alkali metals appear dull on the outside?
A layer of oxide forms on the surface
Why are alkali metals stored in oil?
Why are alkali metals stored in oil?
To prevent reaction with and moisture
What can be used to cut alkali metals?
What can be used to cut alkali metals?
A knife
Why do most alkali metals float on water?
Why do most alkali metals float on water?
They have low density
How many electrons do Group 1 metals have in their outer shell?
How many electrons do Group 1 metals have in their outer shell?
1 electron
Why does reactivity increase down Group 1?
Why does reactivity increase down Group 1?
Outer electron is further from nucleus
What happens to melting point down Group 1?
What happens to melting point down Group 1?
It decreases
What happens to density down Group 1?
What happens to density down Group 1?
It increases
What are the products when an alkali metal reacts with water?
What are the products when an alkali metal reacts with water?
Metal hydroxide and hydrogen
What gas is produced when alkali metals react with water?
What gas is produced when alkali metals react with water?
Hydrogen
What shape does sodium form when reacting with water?
What shape does sodium form when reacting with water?
Ball shape
What colour flame does potassium produce when reacting with water?
What colour flame does potassium produce when reacting with water?
Lilac