Essential Chemistry for IGCSE - The Periodic Table (Section 2 - No. 14)
What is a key characteristic of the elements in Group 17 (VII)?
They are highly reactive metals.
They exist as diatomic molecules.
They have eight valence electrons.
They are very unreactive.
Explanation
Halogens (Group 17 elements) exist as diatomic molecules (e.g., Cl2, Br2).
Comments (0)
