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Interpret the non-linear shape of H(2)S ...

Interpret the non-linear shape of `H_(2)S` molecule and non-planar shape of `PCl_(3)` using valence shell electron pair repulsion (VSEPR) theory.
(Atomic number `:H=1, P=15, S=16, Cl=17`)

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To interpret the non-linear shape of the H₂S molecule and the non-planar shape of PCl₃ using the Valence Shell Electron Pair Repulsion (VSEPR) theory, we can follow these steps: ### Step 1: Determine the Valence Electrons - **H₂S**: Sulfur (S) has an atomic number of 16, which gives it an electronic configuration of 1s² 2s² 2p⁶ 3s² 3p⁴. The valence electrons in the outermost shell (n=3) are 6 (2 from 3s and 4 from 3p). Each hydrogen (H) has 1 valence electron, and since there are 2 hydrogen atoms, the total number of valence electrons for H₂S is 6 (from S) + 2 (from 2 H) = 8 valence electrons. - **PCl₃**: Phosphorus (P) has an atomic number of 15, leading to an electronic configuration of 1s² 2s² 2p⁶ 3s² 3p³. This means phosphorus has 5 valence electrons. Each chlorine (Cl) has 7 valence electrons, and since there are 3 chlorine atoms, the total number of valence electrons for PCl₃ is 5 (from P) + 21 (from 3 Cl) = 26 valence electrons. ### Step 2: Draw the Lewis Structures ...
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