It just means a non-polar bond. If the difference in electronegativity between the two elements is less than .5, then it is a pure (non-polar) covalent bond.
The type of bond in which two atoms share electrons is called a covalent bond.
covalent bond,coordinate bond and singlet bond
covalent
Hydrogen chloride has a covalent bond.
I'm unable to find information on a "colavent bond." Did you mean to ask about a covalent bond?
A covalent bond which is either double or triple covalent bond.
You think probable to a coordinate covalent bond.
When atoms share electrons, they form a chemical bond, or covalent bond.
Nitrogen trichloride is a covalent compound.
Another name for a dative covalent bond is 'coordinate covalent bond'.
single covalent bond
If by En you mean electronegativity, than in a polar covalent bond, the difference is 0.3 to 1.7.