Question

question 10
what is the shape of the species shown in the lewis structure below?
h - s - h
bent
linear
octahedral
see saw
square planar
square pyramid
tetrahedral
trigonal bipyramid
trigonal planar
trigonal pyramid
t - shape

Explanation:

Step1: Determine the central atom's electron domains

The central atom here is S (sulfur) in \( \ce{H2S} \). Sulfur has 6 valence electrons. Each H contributes 1, so total valence electrons: \( 6 + 2\times1 = 8 \). The Lewis structure shows two single bonds (to H) and two lone pairs on S. So electron domains (bonding + lone pairs) = \( 2 + 2 = 4 \).

Step2: Determine the molecular geometry

Electron domain geometry with 4 domains is tetrahedral, but molecular geometry considers only bonding domains. With 2 bonding domains and 2 lone pairs, the molecular geometry (shape) is bent (also called angular). Linear would have 2 domains (no lone pairs), octahedral 6, see - saw 5, square planar 4 (2 lone pairs, 4 bonding but in \( \ce{H2S} \) only 2 bonding), square pyramid 5, tetrahedral 4 (no lone pairs), trigonal bipyramid 5, trigonal planar 3, trigonal pyramid 3 (1 lone pair), T - shape 3 (2 lone pairs, 3 bonding). So the shape is bent.

Answer:

A. bent