In this video we now take a look at metallic hydrides. Now these are formed when diatomic hydrogen reacts with transition metals. Here we have an example of tantalum hydride. Now you might look at this and say, hey, this isn't a whole number, this is 0.9.
Well what we need to understand here is that sometimes from metallic hydrides many do not follow a stoichiometric ratio of metals to hydrogen atoms. H fills in between the gaps of the metal lattice structure. So here we have an example of this are larger red spheres represent our transition metal.
Hydrogen, which is a very small element within itself, just kind of fills in the gaps between each of these transition metal atoms. So this lattice structure, right? So just remember, when it comes to metallic hydride, sometimes you won't get whole numbers for the transition metal and the hydrogen.