Hello!

covalent bond is defined as the bond formed due to sharing of one or more number of electrons between the combining atoms.

A covalent bond is generally formed between non-metals.

There are two coordinate covalent bonds in N2O5 each nitrogen forms one coordinate bond.N2O5 exists in two structures. In one structure the two oxygens which formed coordinate covalent bond with nitrogen are in opposite direction . In another structure the oxygens are in opposite direction

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