The number of $d-$ electrons in $F{e^{2 + }}$ (at no. of $Fe = 26$) is not equal to that of the
What are inner transition elements? Decide which of the following atomic numbers are the atomic numbers of the inner transition elements: $29,59,74,95,102,104$ .
Assertion : Magnetic moment of $Dy$ is highest among lanthanoids.
Reason : Orbital motion contributes magnetic moment.
When $KMnO_4$ solution is added to hot oxalic acid solution, the decolourisation is slow in the beginning but becomes instantaneous after some time. This is because
Which of the following pair will have effective magnetic moment equal