Question

1. which of the following represents a single atom? select two correct answers. mn o₂ k₂o 2k i

Explanation:

• Mn represents a single atom of manganese.
• $O_2$ is a molecule of oxygen with 2 oxygen - atoms.
• $K_2O$ is a compound with 2 potassium and 1 oxygen atom.
• 2K represents 2 potassium atoms, not a single atom.
• I represents a single atom of iodine.

Answer:

Mn, I