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Combined Science: Chemistry

GCSE · Edexcel · higher

QuestionsFlashcards

Group 1
- Group 1 (Alkali Metals)
  5
- Group 1: Reactivity & Electronic Configurations
  3
Group 7
Group 0

Group 0 Flashcards

All 6 cards in this deck

Why are the noble gases in Group 0 chemically inert?: Their atoms have full outer shells, so they do not gain, lose, transfer or share electrons.
Apart from being inert, which property of helium makes it suitable for filling balloons?: Its low density (it is less dense than air).
Which property of argon makes it suitable as an atmosphere for joining steel with a very hot flame?: Argon is unreactive (inert), so it does not react with the hot metal.
What happens to boiling point and density of the noble gases going down Group 0?: Both increase down the group.
Why is helium safer than hydrogen for filling lighter-than-air craft such as blimps?: Helium is non-flammable, so it cannot catch fire, whereas hydrogen burns explosively in air.
Why is a filament light bulb filled with argon rather than air?: Argon is inert, so the white-hot filament cannot react with it and burn out, as it would with the oxygen in air.