Saved Bookmarks
| 1. |
Account for the following : (a) Europlum (II) is more stable than cerium (II). (b) Transition metal have high enthalpies of atomisation . (c ) Actinoid ions are generally coloured. |
|
Answer» Solution :(a) Europlum has stable electronic configuration , i.e.,`[Xe] 4F^(7) 5d^(0)6s^(0)`. (b) Due to LARGE number of unpaired electrons in their atom, there is larger and stronger METALLIC bonding. (c ) Unpaired electron are present in their ions WHCIH undergo f-f TRANSITION. |
|