Group 7 - Halogens

HideShow resource information

Fluorine, chlorine, bromine, iodine and astatine. 

7 electrons in outer shell so all react by gaining an electron to form a negative ion. 

Similar physical properties.

Further down group 7, less reactive because less inclination to gain extra electron to fill outer shell when further out from nucleus (larger atomic radius).

Melting and boiling points increase further down.



No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Chemical patterns and reactivity series resources »