Hydrogen sulfide (H2S) is composed of one sulfur atom bound to two hydrogen atoms by single covalent bonds. There
are two unshared electron pairs around the sulfur atom (indicated by the yellow arrows). The sulfur atom has 8 electrons in
its outer shell and each hydrogen atom has 2 electrons. This fulfills the Octet Rule.
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Hydrogen sulfide has a bent molecular shape.
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The electron pair geometry around the sulfur atom is tetrahedral. There are four groups of electrons
around the central sulfur atom (indicated by the red arrows).
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This is the structural formula for hydrogen sulfide.
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Hydrogen sulfide has molecular polarity. The partial
specific negative charge is on the sulfur atom and the partial specific positive charge is found on the
hydrogen atoms.
| Animated molecular model of hydrogen sulfide. The two unshared electron pairs are represented
by magenta balls.
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