Experts please explain the words following However,recent studies have shown....
Dear student,
There are only some metals which are capable of forming hydrides which are called as interstitial, metallic or non-stoichiometric hydrides. These hydrides does not follow the law of constant proportions and thus have formula like PdH0.6-0.8 and TiH1.5-1.8.
They are termed as interstitial because hydrogen occupies such positions in the metal lattice that it distorts its structure but does not alter its type. Two different structure of metal lattice of PdH are shown in the following picture depending upon the places occupied by Pd and H.
Apart from these- PdH, NiH, TiH, CeH, there are other metal hydrides whose lattice structure is different from the ones shown in the above picture. This implies that metal hydrides having different ratios can have different lattice structure and this does not mean that it will be same as the parent lattice(shown in diagram).
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There are only some metals which are capable of forming hydrides which are called as interstitial, metallic or non-stoichiometric hydrides. These hydrides does not follow the law of constant proportions and thus have formula like PdH0.6-0.8 and TiH1.5-1.8.
They are termed as interstitial because hydrogen occupies such positions in the metal lattice that it distorts its structure but does not alter its type. Two different structure of metal lattice of PdH are shown in the following picture depending upon the places occupied by Pd and H.
Apart from these- PdH, NiH, TiH, CeH, there are other metal hydrides whose lattice structure is different from the ones shown in the above picture. This implies that metal hydrides having different ratios can have different lattice structure and this does not mean that it will be same as the parent lattice(shown in diagram).
Hope this answer helps you clear your doubt.
If you have any more doubts you can ask them here on the forum and our experts will try to help you out as soon as possible.
Regards