Which of the following statements is incorrect for the pair of elements $Zr$ and $Hf$?
- ABoth possess the same number of valence electrons
- BBoth have identical atomic sizes
- CBoth have almost identical ionic radii
- DBoth of these belong to the same period of the periodic table
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Medium
View SolutionConsider $|x|$ as the difference in oxidation states of Mn in the highest manganese fluoride and the highest manganese oxide. The ions with $|x|$ number of unpaired electrons from the following are: $A$. $Sc^{3+}$ $B$. $Zn^{2+}$ $C$. $V^{2+}$ $D$. $Fe^{2+}$ $E$. $Co^{2+}$ Choose the correct answer from the options given below:
DifficultJEE MAIN 2026
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