Question

1. calculate the number of valence electrons in methylene chloride, ch₂cl₂. valence electrons

Explanation:

Step1: Determine valence electrons of each atom

• Carbon (C) has 4 valence electrons.
• Hydrogen (H) has 1 valence electron, and there are 2 H atoms, so total for H: \(2\times1 = 2\).
• Chlorine (Cl) has 7 valence electrons, and there are 2 Cl atoms, so total for Cl: \(2\times7 = 14\).

Step2: Sum the valence electrons

Add the valence electrons of C, H, and Cl: \(4 + 2 + 14 = 20\).

Answer:

20