The 7 diatomic elements

• 1. Hydrogen- H2- Hydrogen gas

  
• 2. Nitrogen- N2- Nitrogen gas

  
• 3. Oxygen- O2- Oxygen gas

  
• 4. Fluorine- F2- Fluorine gas

  
• 5. Chlorine- Cl2- Chlorine gas

  
• 6. Bromine- Br2- Bromine water

  
• 7. Iodine- I2- Iodine crystals