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Transition and Inner Transition Elements — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistryTransition and Inner Transition Elements2 Marks
Question
Transition metals show high melting points why?
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Answer

  1. All the transition metals are hard.
  2. Most of them are hexagonal close-packed, cubic close-packed (or) body-centered cubic which are characteristics of true metals.
  3. The maximum melting point at about the middle of the transition metal series indicates that the $d^5$ configuration of favourable for strong inter-atomic attraction.
  4. Due to the strong metallic bonds, atoms of the transition elements are closely packed and held together. This leads to a high melting point and boiling point.

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