Saved Bookmarks
| 1. |
Give reason : (i) Most of the transition metals have high melting point and boiling point (ii) 2^(nd) ionization enthalpy of Cu is exceptionally high. (iii) atomic size of 4d- and 5d-series elements are almost the same. |
|
Answer» Solution :(i) ELECTRONS of (n - 1) d orbitals along with ns electrons are also involved in metallic bonding (ii) There is loss of exchange energy, DUE to disruption of do configuration of `CU^(+)` ion. (iii) Due to LANTHANOID contraction. |
|