How many electrons do they have on their outer shell?
They all have 8 electrons except from helium that has 2 giving them a full shell that is stable so they do not need to give up or gain electrons. This means they are motionless and don't react much.
3 of 6
What type of gas are they?
Monatomic gases which are single atoms not bonded to each other.
4 of 6
What are the physical features?
They are colourless gases at room temperature. They are still still and non-flammable.
5 of 6
What are the trends?
The boiling points increase as you move down the group as there is an increase in the number of electrons leading to greater intermolecular forces. The relative atomic mass increases.
6 of 6
Other cards in this set
Card 2
Front
What are the noble gases?
Back
Helium, Neon, Argon, Krypton, Xeon, Radon
Card 3
Front
How many electrons do they have on their outer shell?
Comments
No comments have yet been made