Step 1: Understand what halogens are. Halogens are a group of elements in the periodic table, including fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).
Step 2: Learn about their elemental form. In their natural state, halogens do not exist as single atoms; instead, they pair up.
Step 3: Recognize the term 'diatomic molecules.' This means that halogens exist as two atoms bonded together, like Cl2 (chlorine gas) or F2 (fluorine gas).
Step 4: Conclude that a key property of halogens is that they exist as diatomic molecules in their elemental form.
