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H-O-H

Well, the hydrogens bring a total of two valance electrons to the mix and the oxygen contributes six, so the total valance electrons = 8

4 are used in the two bonds, so 8 - 4 = 4

Two lone pair, one above and one below the oxygen in the Lewis dot structure.

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9y ago
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15y ago

The central atom in H20 is the oxygen atom, 'O'. The oxygen atom has 2 lone pairs of electrons around it, and each lone pair has 2 electrons in it.

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9y ago

8 valence electrons are in the electron-dot structure of H2O. There are 2 from hydrogen and 6 from oxygen.

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11y ago

Oxygen has one bonding pair with each H atom, so two bonding pairs in total, and two lone pairs of electrons surrounding its central position.

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11y ago

its not four

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Q: How many lone pairs are around the central atom in H2O?
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