The spin-only magnetic moment value of $M^{3+}$ ion (in gaseous state) from the pairs $Cr^{3+}/Cr^{2+}$,$Mn^{3+}/Mn^{2+}$,$Fe^{3+}/Fe^{2+}$,and $Co^{3+}/Co^{2+}$ that has a negative standard electrode potential,is $B.M.$ (Nearest integer).
- A$4$
- B$2$
- C$3$
- D$1$
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For the first row transition metals,the $E^{\Theta }$ values are:
$E^{\Theta }$ $V$ $Cr$ $Mn$ $Fe$ $Co$ $Ni$ $Cu$ $(M^{2+}/M)$ $-1.18$ $-0.91$ $-1.18$ $-0.44$ $-0.28$ $-0.25$ $+0.35$
Explain the irregularity in the above values.
| $E^{\Theta }$ | $V$ | $Cr$ | $Mn$ | $Fe$ | $Co$ | $Ni$ | $Cu$ |
| $(M^{2+}/M)$ | $-1.18$ | $-0.91$ | $-1.18$ | $-0.44$ | $-0.28$ | $-0.25$ | $+0.35$ |
Explain the irregularity in the above values.
Easy
View SolutionWhat is the number of elements present in each series of transition elements?
The correct order of ionisation energy is:
Difficult
View SolutionThe atomic radii from $Cr$ to $Cu$ are almost identical because of:
Easy
View SolutionWrite a brief note on the electronic configurations of the transition elements.
Difficult
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