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Most elements form oxides and hydroxides...

Most elements form oxides and hydroxides with different characteristics. Often, regular periodic trends are observed in these oxides and hydroxides. Hydroxides of `Na` and `Mg` are distinctly alkaline, while oxides of `N` and `S` are distinctly acidic.
Draw the structure of sulfur dioxide

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To draw the structure of sulfur dioxide (SO₂), we can follow these steps: ### Step 1: Determine the number of valence electrons - Sulfur (S) has 6 valence electrons. - Oxygen (O) has 6 valence electrons, and since there are two oxygen atoms, we multiply by 2. - Total valence electrons = Valence electrons of S + 2 × Valence electrons of O = 6 + 2(6) = 18. ### Step 2: Calculate the number of bond pairs and lone pairs - We divide the total number of valence electrons (18) by 2 to find the number of electron pairs. - Number of electron pairs = 18 / 2 = 9. - Each bond pair contributes 1 to this count, and each lone pair also contributes 1. - To find the number of bond pairs (b) and lone pairs (l), we can use the formula: - b + l = 9. - The number of bond pairs can be determined by considering the typical bonding in SO₂. Since sulfur typically forms two double bonds with oxygen, we can assume 2 bond pairs. - Therefore, the number of lone pairs = 9 - 2 = 7. ### Step 3: Identify the hybridization - The hybridization can be determined from the number of bond pairs and lone pairs. - In this case, with 2 bond pairs and 1 lone pair, the hybridization is sp². ### Step 4: Determine the molecular geometry - According to VSEPR theory, the presence of 2 bond pairs and 1 lone pair results in a bent or V-shaped molecular geometry. ### Step 5: Draw the structure - Place the sulfur atom in the center. - Draw two oxygen atoms bonded to the sulfur atom with double bonds. - Indicate the lone pair of electrons on the sulfur atom. The final structure of sulfur dioxide (SO₂) can be represented as follows: ``` O || S -- O : ```
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