Based on the given model of ammonia, three covalent bonds are represented.
• A bond, which is formed by sharing pair of electrons is known as the covalent bond. The covalent bonds result in the formation of giant structures or molecules.
• There are different ways of demonstrating small covalent molecules, that is, by structural formulae, dot and cross diagrams, and three-dimensional structures.
• The given diagram shows the three-dimensional structure of ammonia. In this, one atom of nitrogen is forming covalent bonds with three hydrogen atoms.
• The formation of covalent bonds takes place as a result of electron pairs sharing between the atoms to attain stability.
Thus, an ammonia molecule exhibits three covalent bonds.
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