Size of Atoms and Ions

Q.

Which of the following is a correct order of atomic sizes: $\mathrm{Ce}\left(58\right)$, $\mathrm{Sn}\left(50\right)$, $\mathrm{Yb}\left(70\right)$, and $\mathrm{Lu}\left(71\right)$?

1. $\mathrm{Sn}>\mathrm{Lu}>\mathrm{Yb}>\mathrm{Ce}$

2. $\mathrm{Ce}>\mathrm{Yb}>\mathrm{Sn}>\mathrm{Lu}$

3. $\mathrm{Ce}>\mathrm{Sn}>\mathrm{Yb}>\mathrm{Lu}$

4. $\mathrm{Lu}>\mathrm{Ce}>\mathrm{Sn}>\mathrm{Yb}$

Q. The elements of the three transition series of the d - block are given below:
$\begin{array}{cccccccccc}& & & & & & & & & \\ Sc& Ti& V& Cr& Mn& Fe& Co& Ni& Cu& Zn\\ Y& Zr& Nb& Mo& Tc& Ru& Rh& Rd& Ag& Cd\\ La& Hf& Ta& W& Re& Os& Ir& Pt& Au& Hg\end{array}$
In any transition series, as we move form left to right, the d - orbitals are progressively filled and their properties vary accordingly.
Which element do you expect to have the highest melting point?

1. La
2. W
3. Os
4. Pt

Q. The atomic radius of $Ag$ is closest to:

1. $Cu$
2. $Hg$
3. $Ni$
4. $Au$

Q. The correct order of ionic radii of $Ce,La,Pm$ and $Yb$ in its $+3$ oxidation state is:

1. $L{a}^{3+}<P{m}^{3+}<C{e}^{3+}<Y{b}^{3+}$
2. $L{a}^{3+}<C{e}^{3+}<P{m}^{3+}<Y{b}^{3+}$
3. $Y{b}^{3+}<C{e}^{3+}<P{m}^{3+}<L{a}^{3+}$
4. $Y{b}^{3+}<P{m}^{3+}<C{e}^{3+}<L{a}^{3+}$

Q. The elements of the three transition series of the d - block are given below:
$\begin{array}{cccccccccc}& & & & & & & & & \\ Sc& Ti& V& Cr& Mn& Fe& Co& Ni& Cu& Zn\\ Y& Zr& Nb& Mo& Tc& Ru& Rh& Rd& Ag& Cd\\ La& Hf& Ta& W& Re& Os& Ir& Pt& Au& Hg\end{array}$
In any transition series, as we move form left to right, the d - orbitals are progressively filled and their properties vary accordingly.
Which element do you expect to have the smallest atomic radius?

1. Sc
2. Zn
3. La
4. Hg

Q. Which of the following have highest ionic radii

1. $C{r}^{3+}$
2. $M{n}^{3+}$
3. $F{e}^{3+}$
4. $C{o}^{3+}$

Q. One of the following metals forms a volatile carbonyl compound and this property is taken advantage for its extraction. This metal is

1. Iron
2. Nickel
3. Cobalt
4. Tungsten

Q. Which of the following pair/s have nearly same size?

1. $Zr,Hf$
2. $Nb,Ta$
3. $Fe,Zn$
4. $K,Rb$

Q. The correct order of ionic radii for $Y^{3+},E{u}^{3+},L{a}^{3+},L{u}^{3+}$

1. $L{a}^{3+}<E{u}^{3+}<L{u}^{3+}<Y^{3+}$
2. $Y^{3+}<L{u}^{3+}<E{u}^{3+}<L{a}^{3+}$
3. $L{u}^{3+}<Y^{3+}<E{u}^{3+}<L{a}^{3+}$
4. $L{u}^{3+}<E{u}^{3+}<L{a}^{3+}<Y^{3+}$