CBSE Class 12-science Answered
In Tc ( Z = 43) and Tb( Z = 65) which one is inner transition metal and which one is transition metal and why?
Asked by Topperlearning User | 26 Jun, 2014, 10:16: AM
Expert Answer
The outer Electronic configuration of Tc (Z = 43) is 4d65s1 and that of Tb (Z = 65) is 4f95d06s2. Since in Tc there is incompletely filled d orbitals hence it is Transition metal or d-block element and in Tb there is incompletely filled f orbitals hence it is inner transition metal or f-block element.
Answered by | 26 Jun, 2014, 12:16: PM
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