SC17d Group 0

Question 1

what is group 0 also known as?

Answer 1

noble gases

Question 2

why do noble gases not react?

Answer 2

already have a full outer shell

Question 3

uses of helium and why?

Answer 3

weather balloons and airships as it has a very low density and is non-flammable​

Question 4

uses of argon and why?

Answer 4

added to the space above the wine in wine barrels; it is denser than air so it stops the oxygen in the air reacting with the wine​

Question 5

uses of neon and why?

Answer 5

making long lasting illuminated signs as it produces a distinctive red-orange light when electricity is passed through it​

Question 6

uses of krypton and why?

Answer 6

photography lighting as it produces brilliant white light when electricity is passed through it​

Question 7

pattern of noble gases? B+M points, density

Answer 7

as you go down:
b + m points - increase
density - increases