1. palladium, a member of the platinum group, with element symbol Pd, is similar to platinum in appearance, with silvery metallic luster and bright color. The specific gravity is 12, which is lighter than platinum and has strong ductility. Melting point 1555℃, hardness 4-4.5, slightly harder than platinum. Chemical properties are relatively stable, insoluble in organic acids, cold sulfuric acid or hydrochloric acid, soluble in nitric acid and aqua regia, and it is not easy to oxidize and lose luster under normal circumstances.

2. Platinum, commonly known as platinum, is a natural white precious metal. Originated 2 billion years ago, a huge meteorite hit the earth and brought this precious metal. As early as 700 BC, platinum was shining brilliantly in the history of human civilization. In the 2000-year history of human use of platinum, platinum has always been regarded as the noblest metal and sought after by the noble royal family.

Platinum is a chemical element, commonly known as platinum. Its chemical symbol is Pt and its atomic order is 78. Platinum is a gray precious metal with high density, high ductility and low reactivity, belonging to transition metals. According to international regulations, only platinum can be called platinum, so the two are the same thing.