InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
Explain the meaning of inner transition series. OR What are inner-transition elements? |
|
Answer» i. The last electron in the f-block elements enters into (n-2) f-orbitals, i.e., inner to the penultimate energy level and they form a transition series within the transition series (d-block elements). Hence, the f-block elements are known as inner transition series. ii. There are two series of inner transition elements: a. Lanthanoids (atomic number 58-71) b. Actinoids (atomic number 90-103). |
|