Saved Bookmarks
| 1. |
Explain briefly how +2 states becomes more and more stable in the first half of the first row transition elements with increasing atomic number. |
|
Answer» Solution :`""_(21)SC ""_(22)TI""_(23)V""""_(24)Cr""_(25)Mn` Sc(Z=21)`1S^(2)2s^(2)2p^(6)3s^(2)3P^(6)4s^(2)3d^(1)` `Sc^(2+) [Ar] 3d^(1)Cr^(2+) [Ar] 4s^(1)3d^(1)` `Ti^(2+) [Ar] 3d^(2)Mn^(2+) [Ar] 3d^(5)` `V^(2+)[Ar]3d^(3)` With the increase in the atomic number, the d-orbital becomes HALF filled and they becomes more stable. |
|