Is #CO_2# an ionic salt or covalent molecule?
A non-polar covalent molecule (with a polar covalent bond).
- 1 carbon atom,
- 2 oxygen atom.
Carbon and oxygen are non-metals, thus we know carbon dioxide is a covalent compound.
Another method is by calculating the difference in electronegativity, we can determine the polarity of the molecule. Calculating the electronegativity also provides the intramolecular force within the compound.
- Polar Covalent Bonds:
- Non-polar Covalent Bonds:
#DeltaEN= 3.5 - 2.5#
Examining the geometric shape of the molecule, results in the linear shape - a symmetrical geometry. This results in the dipoles cancelling out, therefore the molecule becomes non-polar, despite its polar bond.
Hope this helps :)