Which of the following order of atomic radius is not wrong
Which of the following order of atomic radius is not wrong
- A
$Sc < Y \approx La$
- B
$K < Rb \approx Cs$
- C
$Ge < Sn > Pb$
- D
$Ni < Pd \approx Pt$
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Four successive members of the first row transition elements are listed below with their atomic numbers. Which one of them is expected to have the highest third ionization enthalpy
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- [AIPMT 2005]
Magnetic moment of $x^{n+}$ is $\sqrt {24} $ $B.M.$ Hence No. of unpaired electron and value of $'n'$ respectively. (Atomic number $= 26$)
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Which one of the following is paramagnetic
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In the series $\operatorname{Sc}(Z=21)$ to $\operatorname{Zn}(Z=30)$, the enthalpy of atomisation of zinc is the lowest, i.e.. $126\, kJ\, mol ^{-1}$. Why?
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Mercury is a liquid at $0\,^o C$ because of
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