How many nonbonding pairs of electrons are there in the oxygen atom of a water molecule? How many bonding pairs?
The number of nonbonding and bonding pairs of electrons present in oxygen atom of a water molecule.
Answer to Problem 10TE
There are two nonbonding pairs of electrons and two bonding pairs of electrons in the oxygen atom of a water molecule.
Explanation of Solution
A water molecule is basically a polar covalent molecule with two hydrogen-oxygen polar bonds. The oxygen atom is a central atom making two covalent bonds with the hydrogen atoms. The oxygen atom contains six electrons in the outermost shell or a valence shell. Among those six electrons, two electrons are involved in the mutual sharing of two electrons to form two hydrogen-oxygen covalent bonds of a water molecule.
From the total six electrons in the valence shell, the two electrons are making bonding pair, and the remaining four electrons make the nonbonding pairs of electrons.
Conclusion:
Therefore, there are two nonbonding pairs of electrons and two bonding pairs of electrons in the oxygen atom of a water molecule.
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