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A periodic table of any size can be transformed into a stereo model which is called the Periodic Building of the Elements (PBE). To construct the PBE a submodel of the main group and the transition elements should be made in advance, and then a submodel of the lanthanides and the actinides is made in a simple procedure. The whole model is obtained by simply combining these two submodels together.
The PBE is useful and instructive in teaching general and inorganic chemistry. It might attract the students' attention to the periodic law of the elements which is of fundamental importance in chemistry. This model can be put on one's desk as a mnemonic device for the periodic system of the elements.
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