Take the difference of electronegativity between the two atoms.
N to N = 3.0-3. = zero. Covalent.
If delta EN (electronegativity) = 1.8 or 1.9 that is about 50% ionic/50% covalent.
Between zero and 1.8 is olar covalent. We usually call those above 1.8 ionic but those very close to 1.8 or 1.9 still are polar covalent(although more ionic than covalent).
Predict whether the following bonds are ionic, covalent, or polar covalent based on
the bonding atoms electronegativities:
N2
The Al-O bond in Al2O3
MgO
CuS
1 answer