Which bond is stronger and why? C=C or C=O?
@chaoticgood The connection C=O is stronger than the connection C=C. The bond length affects the bond strength. In turn, the bond length depends on the degree of overlap of the electron clouds, the multiplicity of the bond and the radii of the atoms forming the bond. In this example, the bond length depends on the radii of the atoms.
Bond length C=O 0,121 nm, bond length C=C 0,133 nm.
The radius of the neutral oxygen atom is about 0,066 nm, the radius of the carbon atom is about 0,077 nm.
Why in a covalent polar bond, the greater the difference in electronegativity of the atoms of the elements, the stronger the bond. During the transition from a covalent to an ionic bond, the strength drops sharply. What is the reason for this?