6.3 Groups in the periodic table- Group 0

Question 1

Give two reasons why Noble gases are chemically Inert

Answer 1

.They have 8 electrons in their outer shell meaning their shells are full
.Their electron configurations demonstrate full outershells and makes them unreactive

Question 2

What is the only noble gas that does not have 8 electrons in its outer shell?

Answer 2

Helium

Question 3

How many electrons are in Heliums outer shell?

Answer 3

2

Question 4

Give an example of how Low Density gases can be used

Answer 4

Helium is used in airships and balloons and airships as its less dense so balloons filled with it will float upwards

Question 5

Give an example of how inertness and non flammable gases can be used

Answer 5

Argon, Krypton, and Xenon inside lightbulbs, stop the filament burning away

Question 6

Give an example of how inertness gases are used

Answer 6

Argon used as a shield gas when welding, it is also denser than air which keeps it away from the metal

Question 7

How do the boiling points of noble gases change as you go down the group?

Answer 7

.They increase

.They increase with increasing relative atomic masses

Question 8

What happens to the densities of the gases as you go down the group?

Answer 8

They increase