This question is about the noble gases - Edexcel - GCSE Chemistry - Question 3 - 2021 - Paper 1
Question 3
This question is about the noble gases.
(a) (i) State, in terms of outer shell electrons, why the noble gases are unreactive.
(ii) Figure 4 shows an airship, fille... show full transcript
Worked Solution & Example Answer:This question is about the noble gases - Edexcel - GCSE Chemistry - Question 3 - 2021 - Paper 1
Step 1
State, in terms of outer shell electrons, why the noble gases are unreactive.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The noble gases are unreactive because their outer shell electrons are full, leading to a stable electron configuration.
Step 2
Explain why hydrogen and why krypton are not used in airships.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Hydrogen is flammable and could ignite, posing a significant safety risk. Krypton, on the other hand, is more dense than air, which means it would not provide the necessary buoyancy for the airship to float.
