Question

Match the shape of the molecule to the correct number of electron domains and
lone pairs of electrons there are on the central atom.
Bent
1. 4 electron domains, no lone pairs
Linear
V
2. 2 electron domains, no lone pairs
Trigonal Pyramidal
3. 3 electron domains, no lone pairs
4. 3 electron domains, 1 lone pair
Trigonal Planar
5. 4 electron domains, 1 lone pair
Tetrahedral

Answer 1

Bent =  3 electron domains, 1 lone pair

Linear = 2 electron domains, no lone pairs

Trigonal Pyramidal = 4 electron domains, 1 lone pair

Trigonal Planar = 3 electron domains, no lone pairs

Tetrahedral = 4 electron domains, no lone pairs

• The three-dimensional arrangement of the atoms of a molecule in a space is called a molecular shape.
• For molecular shape only bond pairs are considered
• The region around a specific atom in a molecule in which chances of finding electrons are high like lone pairs, bond pairs
• For the electron domain, bond pairs and lone pairs both are considered

Given:

The shape of molecules: bent, linear, trigonal pyramidal, trigonal planar, tetrahedral

To find:

The match of molecular shape with correct electron domains and lone pairs

Solution:

• Bent =  3 electron domains, 1 lone pair
• Linear = 2 electron domains, no lone pairs
• Trigonal Pyramidal = 4 electron domains, 1 lone pair
• Trigonal Planar = 3 electron domains, no lone pairs
• Tetrahedral = 4 electron domains, no lone pairs

Learn more about molecular shape and electron domain here:

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