Polar Chemical Twins Cubes Collection: Nb & Ta, W & Mo, Zr & Hf

Elemental metallic 1 cm elemental cubes These highly polished cubes are great educational tools Story Each cube is highly polished by hand and laser engraved with its periodic info. About the collection At Polar Metals, we seek to spice up your life with interesting and unusual metals in unexpected ways. The elements on the periodic table are everywhere, in fact, they make up everything! We are bringing you the Polar Chemical Twins Cubes Collection. Each cube is solid and of high purity between 99.4% and 99.99%, highly polished by hand for many hours to reach a mirror finish, and laser engraved with the element's periodic info. Here are some interesting facts about the Chemical Twins of metals. Chemical Twins are those elements in which the properties of some elements are the same. They are Nb and Ta, Zr and Hf, W and Mo, Tc and Re. This effect arises due to the lanthanide contraction. Niobium and Tantalum Niobium and Tantalum are transition metals almost always paired together in n