JAMB - Chemistry (1992 - No. 9)
How many lone pairs of electron are there on the central atom of the H2O molecules?
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4
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In a water molecule, oxygen is bonded to two hydrogen atoms. Leaving oxygen with four electrons which pair up with one another to form two lone pairs of electrons.
In a water molecule, oxygen is bonded to two hydrogen atoms. Leaving oxygen with four electrons which pair up with one another to form two lone pairs of electrons.