Набор из 440 предметов Комплект молекулярной модели 440 PCS 132 Модель атомной молекулярной структуры

型号：SW-C440 440件套装分子结构模型

Advanced Chemistry Molecular Model Kit, Organic and Inorganic Set

Total 440 PCS(290 PCS + 150 PCS):

290 PCS  (132 Atoms & 154 Links & 3 Orbitals & 1 Short link remover tool)

150 PCS Carbon 60 (60 Small Atoms & 90 Links)

单套含塑料盒重量 0.95 kg，塑料盒尺寸 23.5 * 17 * 7 cm

有两种装箱可以选择:

装箱尺寸一： 36 * 27 * 36 cm，一箱10套，毛重10kg，净重9.5kg

装箱尺寸二： 54 * 27 * 36 cm，一箱15套，毛重15.5kg，净重15kg

本套产品，默认英文说明书。

 本厂产品已经通过欧盟ce认证（EN71）和美国CPC认证，放心在国外推广使用!

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Chemistry Molecular Model Kit (XMM-074)

XMM-074Chemistry Set allows you to visualize the bonds between atoms in three dimensions. The elements are represented by colored balls and the bonds by flexible rods. Each atom has the same number of holes as the number of valence electrons it needs to complete its outer shell. For example, Carbon has four electrons in its outer shell, so it needs four more to be complete. The black carbon ball has four holes, allowing it to form four bonds and gain the electrons it needs.With this set you can demonstrate single bonds using the short white rods, and double or triple bonds using the long gray rods. This molecular model kit enables users to build virtually simple and complex organic and inorganic molecules. Just have a try!