Interpretation:
The highlights about a molecule by four molecular models needs to be identified.
Concept introduction:
A scale model which represents the arrangement of atoms in the molecule is said to be molecular model.
Explanation of Solution
The four molecular models are:
- Molecular formula: It represents
chemical symbols of the elements in the molecule and the number of atoms of each element is represented by subscript.
For example:
- Structural formula: It consists of symbols of the elements and lines for the
chemical bonds .
For example: The structural formula of methane is:
- Ball-and-stick model: It displays the three-dimensional position of the atoms and the chemical bonds present in a molecule. Differently colored spheres are used to represent atoms and are connected by rods that represents chemical bonds.
For example: The ball-and-stick model of methane is:
The black sphere represents carbon atom and grey balls represents hydrogen atoms.
- Space-filling model: The relative space that each atom exerts it self in is represented by space-filling model.
For example: The space-filling model of methane is:
Chapter 21 Solutions
Glencoe Chemistry: Matter and Change, Student Edition
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