Admin Table of Contents
What is space-filling model used for?
These models are constructed by drawing each atom as a van der Waals sphere with the atom’s nucleus at the center of the sphere. Space-filling models are useful because they show how much space an atom (or molecule) occupies.
What information does a space-filling model provide about a molecule?
Space-filling models give a representation of the size and shape of the whole molecule, showing (relatively) how much space each atom occupies.
What’s the difference between a ball and stick model and a space-filling model?
A ball-and-stick model shows the geometric arrangement of the atoms with atomic sizes not to scale, and a space-filling model shows the relative sizes of the atoms.
What is a Spacefill representation?
Spacefilling representation is one way to represent a 3D structure. In spacefilling representation, each atom is depicted as a solid sphere, usually with a radius equal to some interpretation of its atomic radius.
Is space-filling model accurate?
The space-filling models are the most realistic. The size and position of an atom in a space-filling model are determined by its bonding properties and van der Waals radius, or contact distance (Section 1.3. 1).
What does the ball and stick model show?
A ball and stick model can be used to show the structure of a simple molecule. This type of model has the advantage of showing how the atoms are connected and how they are arranged in space, including the angles between bonds. The main advantage is that it shows the overlap of the electron shells of the atoms.
What does the ball-and-stick model represent?
Ball and stick models are three-dimensional models where atoms are represented by spheres of different colors and bonds are represented by sticks between the spheres. Particular atoms are associated with different colors, for example, black is usually used to represent carbon and white to represent hydrogen.
Why is the ball and stick model accurate?
Ball-and-stick models are not as realistic as space-filling models, because the atoms are depicted as spheres of radii smaller than their van der Waals radii. However, the bonding arrangement is easier to see because the bonds are explicitly represented as sticks. In skeletal models, atoms are not shown explicitly.
Why is the ball and stick model useful?
What is one disadvantage of space filling models?
An alternative 3D model, often used in computer simulations, is a space-filled model. This has the disadvantage that it is no longer possible to see the angles between bonds. The main advantage is that it shows the overlap of the electron shells of the atoms.
Why isn’t the ball and stick model a true representation?
the three-dimensional ball and stick model shows the arrangement of ions in a larger section of the crystal, but using sticks for bonds is misleading because the forces of attraction between ions actually act in all directions.
https://www.youtube.com/watch?v=Jpu1wGLBUj8