Platinum compounds electron-poor

The term hydro has been used throughout in this article in preference to the more commonly used terms hydride or hydrido. These latter terms imply that the hydrogen atom bonded to a transition metal has a high electron density comparable to the saline hydrides of Groups lA and IIA. A number of hydro-transition metal compounds do, indeed, show chemical behavior characteristic of a hydridic hydrogen. However, this is in no way general, and, since it is a particularly poor assumption for the compounds of platinum, the use of the term hydro should avoid any misconception on the part of the reader not familiar with this area of chemistry. 

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