Record the chemical formula, number of each type of atom, and whether a compound or element forms for each combination.

Here are the details for each combination of the selected elements:

1. Names of the Two Elements Selected: Chlorine, Chlorine

   • Chemical Formula: Cl₂
   • Number of Each Type of Atom: Cl: 2
   • Compound or Element? Element

2. Names of the Two Elements Selected: Hydrogen, Chlorine

   • Chemical Formula: HCl
   • Number of Each Type of Atom: H: 1, Cl: 1
   • Compound or Element? Compound

3. Names of the Two Elements Selected: Sodium, Chlorine

   • Chemical Formula: NaCl
   • Number of Each Type of Atom: Na: 1, Cl: 1
   • Compound or Element? Compound

4. Names of the Two Elements Selected: Chlorine, Oxygen

   • Chemical Formula: ClO
   • Number of Each Type of Atom: Cl: 1, O: 1
   • Compound or Element? Compound

5. Names of the Two Elements Selected: Hydrogen, Hydrogen

   • Chemical Formula: H₂
   • Number of Each Type of Atom: H: 2
   • Compound or Element? Element

6. Names of the Two Elements Selected: Sodium, Hydrogen

   • Chemical Formula: NaH
   • Number of Each Type of Atom: Na: 1, H: 1
   • Compound or Element? Compound

7. Names of the Two Elements Selected: Sodium, Sodium

   • Chemical Formula: Na₂
   • Number of Each Type of Atom: Na: 2
   • Compound or Element? Element

8. Names of the Two Elements Selected: Sodium, Oxygen

   • Chemical Formula: Na₂O
   • Number of Each Type of Atom: Na: 2, O: 1
   • Compound or Element? Compound

9. Names of the Two Elements Selected: Oxygen, Oxygen

   • Chemical Formula: O₂
   • Number of Each Type of Atom: O: 2
   • Compound or Element? Element

This summarizes the results for each pair of elements you provided.