Publisher's Synopsis
Start with the enjoyable task of making this ingenious and colorful tower model which shows all the elements which have so far been discovered. They spiral downwards according to their electronic structures, hence, the name chemical helix. The tower has eight sides and so, those elements which come above and below each other on the tower share chemical properties, just as they do in the conventional periodic table. Included is an extensive minibook packed with ideas and explanations about the elements.
