The shape of molecules

Models: Author: E3DPLUSVET
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Chemistry
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Technichal Specifications

Technology: FDM 3D Printer model: PRUSA Material: PLA Color: Carbon – black / Oxygen – red/ Nitrogen – blue / Hydrogen – white / Chlorine – green / Phosphorus – orange / Sulphur – yellow / Beryl - light green / Boron – pink / Doublet - grey Dimmensions: 38 atoms, 30x30x5 mm / 29 bonds,5x5x30 mm / 3 electronic doublets 30x30x5 mm Resistance required: No When to print: Before class Can it be painted?: No Number of pieces: 70 Need Assembly: Yes Quality required: medium

General description

The exercise involves the printing of the atoms for the development of the VSEPR theory. The students will realise the compositions of the linear geometry, triangular and tetrahedral planar geometry. In particular, the presence of a free NH3 doublet assumes a pyramidal geometry with a triangular base and H2O since there are 2 free doublets with a folded geometry. Number of pieces: 38 atoms, 29 bonds, 3 electronic doublets. In the design of the atoms for greater correctness it would be necessary to respect the atomic volumes, making reference to tables of atomic radius easily available.

How to use this exercise?

Show the method VSEPR and the geometry of the models.

Number of pieces of this exercise

70

General description

The exercise involves the printing of the atoms for the development of the VSEPR theory.
The students will realise the compositions of the linear geometry, triangular and tetrahedral planar geometry.
In particular, the presence of a free NH3 doublet assumes a pyramidal geometry with a triangular base and H2O since there are 2 free doublets with a folded geometry.

Number of pieces: 38 atoms, 29 bonds, 3 electronic doublets.

In the design of the atoms for greater correctness it would be necessary to respect the atomic volumes, making reference to tables of atomic radius easily available.

Additional Material

https://www.youtube.com/watch?v=gOvfzoeJrkQhttps://www.youtube.com/watch?v=m6pXudEUO_Q

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Models used:

License Info

Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

You are free to:

Share — copy and redistribute the material in any medium or format
Adapt — remix, transform, and build upon the material
for any purpose, even commercially.

Under the following terms:

Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Learning Specifications

How can the model be used in class?

This model can be used within the class during the explanation phase of the lesson “The form of Molecules” as a support to the lesson and letting the students interact with the models stimulating conceptualization through manipulation.

What benefits can its use have?

The benefits that can be obtained with its use are: greater capacity to solve problems involving spatial visualization and greater ease in translating concepts from one representation to another.

Can it be used in other subjects?

Geometry and Mathematics