The diagram shows 5 eletctron in the outermost shell of Nitrogen atom out of which 3 electrons are involved in the bond formation with 3 Hydrogen atoms.
The type of bond in ammonia is Covalent.
What is covalent bond ?
Covalent bond is the bond formed by mutual Sharing of electrons by both the atoms taking part in the bond formation.
Nitrogen has 5 valence electrons of which only 3 are shares with the 3 atoms of hydrogen (one electron shares with one atom of hydrogen)
Hence, type of bond in ammonia is covalent.
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