Group 1 – Alkali metals (Edexcel GCSE Chemistry Combined Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
Why are alkali metals stored in oil?
Why are alkali metals stored in oil?
To prevent reaction with & moisture
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 further from nucleus
What happens to melting point as you go down Group 1?
What happens to melting point as you go down Group 1?
It decreases
What happens to density as you go down Group 1?
What happens to density as you go down Group 1?
It increases
What is produced when an alkali metal reacts with oxygen?
What is produced when an alkali metal reacts with oxygen?
Metal oxide
What two products form when alkali metals react with water?
What two products form when alkali metals react with water?
Metal hydroxide & hydrogen
What colour does universal indicator turn when alkali metals react with water?
What colour does universal indicator turn when alkali metals react with water?
Purple
Which gas is produced when alkali metals react with water?
Which 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 flame