4.1.2.4 Group 0

electronic structure of group 0

They​ ​have​ ​8​ ​electrons​ ​in​ ​their​ ​outer​ ​shell​ ​(except
helium,​ ​which​ ​has​ ​2).​ ​

All​ ​of​ ​them​ ​(including​ ​helium)
have​ ​full​ ​outer​ ​shells

Properties of noble gas

Colourless gases

Inert- full outershells - don’t react with anything

Non- flammable

Monatomic gases

Trends of group 0

Bp increases going down the group- this is due to an increase in the number of electrons in each atom, leading to greater intermolecular forces between them which need to be overcome

Why are group 0 unreactive

Because they have a full outer energy level