Transition elements are small in size but have larger surface area. How these two things are possible at the same time ??
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Find your answer below:-
Though transition elements are smaller in size but occupy large surface area, which is occur due to metallic bonding of delocalised d electrons (the electrons can move freely within molecular orbitals, and so each electron becomes detached from its parent atom and these electrons are said to be delocalised) which lead to increase in the number of shared electrons. Transition elements form number of interstitial compounds(transition elements can trap atoms of other elements that have small atomic size, such as H, C, N, in the interstitial sites of their crystal lattices. The resulting compounds are called interstitial compounds.), in which they take up atoms of small size like H, C and N in the vacant spaces in their lattices. The presence of these atoms result in decrease in malleability and ductility of the metals but increases their tensile strength.
Hope this helps !
All the best !
Regards,
Find your answer below:-
Though transition elements are smaller in size but occupy large surface area, which is occur due to metallic bonding of delocalised d electrons (the electrons can move freely within molecular orbitals, and so each electron becomes detached from its parent atom and these electrons are said to be delocalised) which lead to increase in the number of shared electrons. Transition elements form number of interstitial compounds(transition elements can trap atoms of other elements that have small atomic size, such as H, C, N, in the interstitial sites of their crystal lattices. The resulting compounds are called interstitial compounds.), in which they take up atoms of small size like H, C and N in the vacant spaces in their lattices. The presence of these atoms result in decrease in malleability and ductility of the metals but increases their tensile strength.
Hope this helps !
All the best !
Regards,