Group 7 Flashcards
Group 7 are known as
Halogens
In group 7 fluorine’s appearance is
A yellow gas
In group 7 chlorine’s appearance is
A dense green gas
In group 7 bromines appearance is
Volitle red- brown liquid
In group 7 iodines appearance is
Dark grey solid or purple vapour
When u go down group 7 the reactivity
Deceases
When u go down group 7 the melting boilin pint
Increases
When u go down group 7 relative molecular mass
Increases
The halogens exist as a
Diatomic molecule ( two atoms joined by a covalent bond )
Group 7 have how may outer electrons
7 they need one more to be filled
Group 7 can react in two ways how
Sharin electrons -
Gainin electrons-
In group 7 what doe Sharin electrons do
Halogens firm covalent bonds with other non-metals to form molecular compounds
In group 7 what does gainin electrons do
Halogens form ionic compound when the react with metals
As they gain one electron they got 1- ions
More reactive halogens do eat
Displace less reactive ones
