Embedded Files
The elements in Group 7 of the periodic table are known as the halogens and have similar reactions because they all have seven electrons in their outer shell. The halogens are non-metals and consist of molecules made of pairs of atoms.
The elements in Group 7 of the periodic table are known as the halogens and have similar reactions because they all have seven electrons in their outer shell.
The halogens are non-metals and consist of molecules made of pairs of atoms.
In Group 7, the further down the group an element is the higher its relative molecular mass, melting point and boiling point.
Page updated
Report abuse