众多金属家族中,有一族金属通常被叫做贵金属,那就是铂族金属。其主要成员是铂。它们之所以被称为贵金属,不仅因为它们的价格昂贵,而且具有可贵的顽强性格。它们耐强酸的腐蚀,耐高温,不易氧化,硬度大而且耐摩擦,熔点也相当高,所以有极高的工业价值,自然界极其稀少,很难得到。因而这个家族无愧于“百宝箱”之称。 Among the many metal families, a group of metals is usually called precious metals, that is, platinum group metals. Its main member is platinum. They are called precious metals not only because of their high price, but also because of their valuable tenacious character. They are resistant to acid corrosion, high temperature, easy oxidation, hardness and friction, the melting point is quite high, so there is a high industrial value, the natural world is extremely scarce, it is difficult to get. Therefore, this family is worthy of “treasure chest,” said.