Here's why:
* Linear geometry: The carbon dioxide molecule (CO₂) has a linear geometry. This means that the three atoms are arranged in a straight line.
* Hybridization: The carbon atom in CO₂ undergoes sp hybridization. This creates two hybrid orbitals that are oriented at 180 degrees to each other.
* Double bonds: The carbon atom forms double bonds with each oxygen atom. These double bonds are strong and push the oxygen atoms as far apart as possible.
Therefore, the bond angle between the oxygen atoms is maximized at 180 degrees, creating a perfectly linear molecule.
