Everything about Ball-and-stick Model totally explained
Ball-and-stick models and
space-filling models (also known as
Calotte models) are
3D or spatial
molecular models which serve to display the structure of
chemical products and
substances or
biomolecules.
With ball-and-stick models, the centers of the
atoms are connected by
straight lines which represent the
covalent bonds. Double and triple bonds are often represented by springs, which form curved connections between the balls. The
bond angles and
bond lengths reflect the actual relationships, while the
space occupied by the atoms is either not represented at all, or only denoted essentially by the relative sizes of the spheres.
The advantage of the ball-and-stick model as opposed to the Calotte model is that it allows better insight into the
molecule’s bond structure.
Color Code
Although no official standard seems to exist, model kits commonly use the
CPK coloring.
History
In 1865, German chemist
August Wilhelm von Hofmann was the first to make stick-and-ball molecular models, which he used in lecture at the
Royal Institution of Great Britain, such as methane shown below:
Further Information
Get more info on 'Ball-and-stick Model'.
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