This VSEPR theory set can build 6 models of molecules representative of the basic molecular shapes all at once & for only $117.95.
The 6 Model VSEPR Large Classroom Model set is unique in that any atom can take on any geometry. Go to the bottom of page Unit Molecular Models for an overview or click on the Instructions/Safety tab to see videos on how to construct any molecular geometry.
Note: Colors may not be as shown due to stock availability.
|69150-60||Unit Blue Plastic Bond, 60mm||4|
|69150-80||Unit Blue Plastic Bond, 80mm||18|
|69388C||Atom, Unit, 25mm, white (hydrogen)||4|
|69390C||Atom, Unit, 45mm, blue (nitrogen)||1|
|69391C||Atom, Unit, 45mm, red (oxygen)||2|
|69392C||Atom, Unit, 45mm, black (carbon)||3|
|69393C||Atom, Unit, 45mm, green (halogen)||16|
|69395C||Atom, Unit, 45mm, yellow (sulfur)||2|
|69400||Unit Bond Pegs: 72 pieces: (36 tetra; 24 radial;12 polar)||1|
I recently moved to the UK from the US and needed some classroom-demonstration models. In the US, I had used the horrible polystyrene balls and wooden sticks that were/are so prevalent. They were awkward to use and very fragile. Indeed, after only typically 2-3 uses of a given central atom, at least one "hole" for the sticks had broken. No such issues with the Indigo kit. While it was initially a little tiresome to set up the 5- and 6- coordinate central atoms, they are sturdy and have not (to date) broken. They are easy to transport and visually more appealing than the ones I used previously. While the price might seem a little steep, it is worth it to have a great classroom tool and I recommend them wholeheartedly.
Thanks for the feedback. It can indeed be a bit tedious setting up the various hole configurations but that is also the beauty of it. No other set is as versatile in creating both standard VSEPR geometries and ones onlyÂ found in crystals.
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