# Of single, double, and triple covalent bonds, which is the longest? Which is the strongest?

Jun 18, 2018

What do you think...?

#### Explanation:

The modern chemical bond is conceived to be a region of high electron density between two positively charged atomic nuclei which NEGATES electrostatic repulsion between the positive charges, and a net attractive force operates that binds the nuclei together.

In a single bond, electron density is situated BETWEEN the nuclei...in a double bond the electron density lies in PLANES above and below the atom-atom vector...and for a triple bond the electron density lies normal to the plane of the double bond... (and yes there are quadruple bonds, but I am not going to consider it here)…

And typical carbon-carbon lengths...$C - C$, $1.54 \times {10}^{-} 10 \cdot m$; $C = C$, $1.40 \times {10}^{-} 10 \cdot m$; $C \equiv C$, $1.21 \times {10}^{-} 10 \cdot m$...
I will leave you to find the values associated with $N - N$, $N = N$, and $N \equiv N$ bonds...and with $C - O - C$, $C = O$, and ""^(-):C-=O^+ bonds...do it...