Question

describe one property shared by elements form group 17 to group 18

Answer 1

One property shared by elements from group 17 to group 18 is that they all have a complete outermost electron shell, also known as a full valence shell. This makes them stable and less likely to react with other elements to form compounds. Additionally, they all have a relatively high electronegativity, meaning that they are able to attract electrons towards themselves in chemical reactions.