Carbon is the most common, followed by nitrogen.
(In inorganics, silicon too.)
A molecule can have a completely nonpolar covalent bond when two atoms of the same element form the bond.
nonpolar!
In a nonpolar covalent bond the difference between the electronegativities of the two atoms are not significant.
The electronegativities of two atoms are equal :)
Nonpolar covalent bond
Electrons in nonpolar covalent bonds are shared equally between the atoms involved. Covalent bonds between atoms of the same element display this kind of bond. However, bonds between atoms of different atoms can be nonpolar as well. Such bonds include the covalent bond between carbon and hydrogen.
A molecule can have a completely nonpolar covalent bond when two atoms of the same element form the bond.
nonpolar!
In a nonpolar covalent bond the difference between the electronegativities of the two atoms are not significant.
The electronegativities of two atoms are equal :)
Nonpolar covalent bond
If the atoms in a covalent bond share electrons equally, the bond is nonpolar.
A "nonpolar" covalent bond.
Nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.
nonpolar
nonpolar
The electronegativities of two atoms joined by a nonpolar covalent must be exactly or nearly equal.