Fill in the blanks:
$(a)$ The $4f$ and $5f$ series elements are known as lanthanoids and actinoids,respectively.
$(b)$ In transition elements,electrons are filled in the $d$-orbitals of the .......... energy levels.
$(a)$ The $4f$ and $5f$ series elements are known as lanthanoids and actinoids,respectively.
$(b)$ In transition elements,electrons are filled in the $d$-orbitals of the .......... energy levels.
- ALanthanoids,Actinoids
- BInner
- COuter
- DValence
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Which of the following metal ions has a pink color?
Easy
View SolutionMatch the properties given in List-$I$ with the metals given in List-$II$:
List-$I$ (Property) List-$II$ (Metal) $A$. Element with maximum second ionization enthalpy $i$. $Co$ $B$. Element with maximum third ionization enthalpy $ii$. $Cr$ $C$. $M$ in $M(CO)_6$ $iii$. $Cu$ $D$. Element with maximum enthalpy of atomization $iv$. $Zn$ $v$. $Ni$
| List-$I$ (Property) | List-$II$ (Metal) |
| $A$. Element with maximum second ionization enthalpy | $i$. $Co$ |
| $B$. Element with maximum third ionization enthalpy | $ii$. $Cr$ |
| $C$. $M$ in $M(CO)_6$ | $iii$. $Cu$ |
| $D$. Element with maximum enthalpy of atomization | $iv$. $Zn$ |
| $v$. $Ni$ |
Medium
View SolutionWhich of the following graphs is the correct representation of the relationship between atomic number $(Z)$ and the magnetic moment of $d-$block elements? [Outer electronic configuration : $(n - 1)d^x\ ns^{1\ or\ 2}$]
For which one of the following elements,the $M^{3+} / M^{2+}$ standard electrode potential is more positive?
Among the following,the incorrect statement about transition metals is:
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