Which molecular shape corresponds to a molecule with a central atom that has one

Practice Questions

Q1
Which molecular shape corresponds to a molecule with a central atom that has one lone pair and three bonding pairs?
  1. Tetrahedral
  2. Trigonal pyramidal
  3. Bent
  4. Linear

Questions & Step-by-Step Solutions

Which molecular shape corresponds to a molecule with a central atom that has one lone pair and three bonding pairs?
  • Step 1: Identify the central atom in the molecule.
  • Step 2: Count the number of lone pairs on the central atom. In this case, there is 1 lone pair.
  • Step 3: Count the number of bonding pairs (the number of atoms bonded to the central atom). Here, there are 3 bonding pairs.
  • Step 4: Understand that the shape of a molecule is influenced by the arrangement of lone pairs and bonding pairs.
  • Step 5: Recognize that a central atom with 1 lone pair and 3 bonding pairs will have a trigonal pyramidal shape.
  • Step 6: Remember that the lone pair pushes down on the bonding pairs, creating a pyramid-like structure.
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