$\mathrm{Fe}, \mathrm{Co}, \mathrm{Ni}$ and $\mathrm{Cu}$ are belong to the $3^{\text {rd }}$ transition series in the same period. The atomic radii are not vary because of the extra screening by the $3 \mathrm{~d}$ electrons with increasing by the additional protons. This is repel already present 1 s electron. Hence, repulsion will increase the atomic radius. In $\mathrm{Fe}, \mathrm{Co}, \mathrm{Ni}$ and $\mathrm{Cu}$ have nearly balance each other keeping the atomic radius same.
CG PET -2019
Classification of Elements and Periodicity in Properties
89454
The set representing the right order of ionic radius is
On going down the group size increases and charge of cation increases size decreases. $$ \mathrm{Na}^{+}>\mathrm{Li}^{+}>\mathrm{Mg}^{2+}>\mathrm{Be}^{2+} $$
TS EAMCET-2017
Classification of Elements and Periodicity in Properties
89456
The ion having the highest mobility in aqueous solution is
1 $\mathrm{Ba}^{2+}$
2 $\mathrm{Mg}^{2+}$
3 $\mathrm{Ca}^{2+}$
4 $\mathrm{Be}^{2+}$
Explanation:
Larger the size of cation, less hydrated. Hence, it show higher mobility in aqueous solution. Among the given species $\mathrm{Ba}^{2+}$ ion has largest. size, so hydrate to smaller extent and show highest mobility. $$ \mathrm{Be}^{2+}<\mathrm{Mg}^{2+}<\mathrm{Ca}^{2+}<\mathrm{Ba}^{2+} $$
CG PET -2017
Classification of Elements and Periodicity in Properties
89457
The ionic species having the largest size is
1 $\mathrm{Li}^{+}(\mathrm{g})$
2 $\mathrm{Rb}^{+}(\mathrm{aq})$
3 $\mathrm{Li}^{+}(\mathrm{aq})$
4 $\mathrm{Cs}^{+}(\mathrm{aq})$
Explanation:
Concept used (i) In gaseous state, more the value of $\frac{Z}{\mathrm{e}}$, smaller is the size of ion. (ii) In aqueous solution i.e. in hydrated- state, Smaller the gaseous ion, more it get hydrated and therefore more is its size. Among given options $\mathrm{Li}^{+}$(g) has smallest, size, so it hydrates to large extent and its size becomes largest. Therefore, $\mathrm{Li}(\mathrm{aq})$ has the largest, size.
$\mathrm{Fe}, \mathrm{Co}, \mathrm{Ni}$ and $\mathrm{Cu}$ are belong to the $3^{\text {rd }}$ transition series in the same period. The atomic radii are not vary because of the extra screening by the $3 \mathrm{~d}$ electrons with increasing by the additional protons. This is repel already present 1 s electron. Hence, repulsion will increase the atomic radius. In $\mathrm{Fe}, \mathrm{Co}, \mathrm{Ni}$ and $\mathrm{Cu}$ have nearly balance each other keeping the atomic radius same.
CG PET -2019
Classification of Elements and Periodicity in Properties
89454
The set representing the right order of ionic radius is
On going down the group size increases and charge of cation increases size decreases. $$ \mathrm{Na}^{+}>\mathrm{Li}^{+}>\mathrm{Mg}^{2+}>\mathrm{Be}^{2+} $$
TS EAMCET-2017
Classification of Elements and Periodicity in Properties
89456
The ion having the highest mobility in aqueous solution is
1 $\mathrm{Ba}^{2+}$
2 $\mathrm{Mg}^{2+}$
3 $\mathrm{Ca}^{2+}$
4 $\mathrm{Be}^{2+}$
Explanation:
Larger the size of cation, less hydrated. Hence, it show higher mobility in aqueous solution. Among the given species $\mathrm{Ba}^{2+}$ ion has largest. size, so hydrate to smaller extent and show highest mobility. $$ \mathrm{Be}^{2+}<\mathrm{Mg}^{2+}<\mathrm{Ca}^{2+}<\mathrm{Ba}^{2+} $$
CG PET -2017
Classification of Elements and Periodicity in Properties
89457
The ionic species having the largest size is
1 $\mathrm{Li}^{+}(\mathrm{g})$
2 $\mathrm{Rb}^{+}(\mathrm{aq})$
3 $\mathrm{Li}^{+}(\mathrm{aq})$
4 $\mathrm{Cs}^{+}(\mathrm{aq})$
Explanation:
Concept used (i) In gaseous state, more the value of $\frac{Z}{\mathrm{e}}$, smaller is the size of ion. (ii) In aqueous solution i.e. in hydrated- state, Smaller the gaseous ion, more it get hydrated and therefore more is its size. Among given options $\mathrm{Li}^{+}$(g) has smallest, size, so it hydrates to large extent and its size becomes largest. Therefore, $\mathrm{Li}(\mathrm{aq})$ has the largest, size.
$\mathrm{Fe}, \mathrm{Co}, \mathrm{Ni}$ and $\mathrm{Cu}$ are belong to the $3^{\text {rd }}$ transition series in the same period. The atomic radii are not vary because of the extra screening by the $3 \mathrm{~d}$ electrons with increasing by the additional protons. This is repel already present 1 s electron. Hence, repulsion will increase the atomic radius. In $\mathrm{Fe}, \mathrm{Co}, \mathrm{Ni}$ and $\mathrm{Cu}$ have nearly balance each other keeping the atomic radius same.
CG PET -2019
Classification of Elements and Periodicity in Properties
89454
The set representing the right order of ionic radius is
On going down the group size increases and charge of cation increases size decreases. $$ \mathrm{Na}^{+}>\mathrm{Li}^{+}>\mathrm{Mg}^{2+}>\mathrm{Be}^{2+} $$
TS EAMCET-2017
Classification of Elements and Periodicity in Properties
89456
The ion having the highest mobility in aqueous solution is
1 $\mathrm{Ba}^{2+}$
2 $\mathrm{Mg}^{2+}$
3 $\mathrm{Ca}^{2+}$
4 $\mathrm{Be}^{2+}$
Explanation:
Larger the size of cation, less hydrated. Hence, it show higher mobility in aqueous solution. Among the given species $\mathrm{Ba}^{2+}$ ion has largest. size, so hydrate to smaller extent and show highest mobility. $$ \mathrm{Be}^{2+}<\mathrm{Mg}^{2+}<\mathrm{Ca}^{2+}<\mathrm{Ba}^{2+} $$
CG PET -2017
Classification of Elements and Periodicity in Properties
89457
The ionic species having the largest size is
1 $\mathrm{Li}^{+}(\mathrm{g})$
2 $\mathrm{Rb}^{+}(\mathrm{aq})$
3 $\mathrm{Li}^{+}(\mathrm{aq})$
4 $\mathrm{Cs}^{+}(\mathrm{aq})$
Explanation:
Concept used (i) In gaseous state, more the value of $\frac{Z}{\mathrm{e}}$, smaller is the size of ion. (ii) In aqueous solution i.e. in hydrated- state, Smaller the gaseous ion, more it get hydrated and therefore more is its size. Among given options $\mathrm{Li}^{+}$(g) has smallest, size, so it hydrates to large extent and its size becomes largest. Therefore, $\mathrm{Li}(\mathrm{aq})$ has the largest, size.
$\mathrm{Fe}, \mathrm{Co}, \mathrm{Ni}$ and $\mathrm{Cu}$ are belong to the $3^{\text {rd }}$ transition series in the same period. The atomic radii are not vary because of the extra screening by the $3 \mathrm{~d}$ electrons with increasing by the additional protons. This is repel already present 1 s electron. Hence, repulsion will increase the atomic radius. In $\mathrm{Fe}, \mathrm{Co}, \mathrm{Ni}$ and $\mathrm{Cu}$ have nearly balance each other keeping the atomic radius same.
CG PET -2019
Classification of Elements and Periodicity in Properties
89454
The set representing the right order of ionic radius is
On going down the group size increases and charge of cation increases size decreases. $$ \mathrm{Na}^{+}>\mathrm{Li}^{+}>\mathrm{Mg}^{2+}>\mathrm{Be}^{2+} $$
TS EAMCET-2017
Classification of Elements and Periodicity in Properties
89456
The ion having the highest mobility in aqueous solution is
1 $\mathrm{Ba}^{2+}$
2 $\mathrm{Mg}^{2+}$
3 $\mathrm{Ca}^{2+}$
4 $\mathrm{Be}^{2+}$
Explanation:
Larger the size of cation, less hydrated. Hence, it show higher mobility in aqueous solution. Among the given species $\mathrm{Ba}^{2+}$ ion has largest. size, so hydrate to smaller extent and show highest mobility. $$ \mathrm{Be}^{2+}<\mathrm{Mg}^{2+}<\mathrm{Ca}^{2+}<\mathrm{Ba}^{2+} $$
CG PET -2017
Classification of Elements and Periodicity in Properties
89457
The ionic species having the largest size is
1 $\mathrm{Li}^{+}(\mathrm{g})$
2 $\mathrm{Rb}^{+}(\mathrm{aq})$
3 $\mathrm{Li}^{+}(\mathrm{aq})$
4 $\mathrm{Cs}^{+}(\mathrm{aq})$
Explanation:
Concept used (i) In gaseous state, more the value of $\frac{Z}{\mathrm{e}}$, smaller is the size of ion. (ii) In aqueous solution i.e. in hydrated- state, Smaller the gaseous ion, more it get hydrated and therefore more is its size. Among given options $\mathrm{Li}^{+}$(g) has smallest, size, so it hydrates to large extent and its size becomes largest. Therefore, $\mathrm{Li}(\mathrm{aq})$ has the largest, size.
$\mathrm{Fe}, \mathrm{Co}, \mathrm{Ni}$ and $\mathrm{Cu}$ are belong to the $3^{\text {rd }}$ transition series in the same period. The atomic radii are not vary because of the extra screening by the $3 \mathrm{~d}$ electrons with increasing by the additional protons. This is repel already present 1 s electron. Hence, repulsion will increase the atomic radius. In $\mathrm{Fe}, \mathrm{Co}, \mathrm{Ni}$ and $\mathrm{Cu}$ have nearly balance each other keeping the atomic radius same.
CG PET -2019
Classification of Elements and Periodicity in Properties
89454
The set representing the right order of ionic radius is
On going down the group size increases and charge of cation increases size decreases. $$ \mathrm{Na}^{+}>\mathrm{Li}^{+}>\mathrm{Mg}^{2+}>\mathrm{Be}^{2+} $$
TS EAMCET-2017
Classification of Elements and Periodicity in Properties
89456
The ion having the highest mobility in aqueous solution is
1 $\mathrm{Ba}^{2+}$
2 $\mathrm{Mg}^{2+}$
3 $\mathrm{Ca}^{2+}$
4 $\mathrm{Be}^{2+}$
Explanation:
Larger the size of cation, less hydrated. Hence, it show higher mobility in aqueous solution. Among the given species $\mathrm{Ba}^{2+}$ ion has largest. size, so hydrate to smaller extent and show highest mobility. $$ \mathrm{Be}^{2+}<\mathrm{Mg}^{2+}<\mathrm{Ca}^{2+}<\mathrm{Ba}^{2+} $$
CG PET -2017
Classification of Elements and Periodicity in Properties
89457
The ionic species having the largest size is
1 $\mathrm{Li}^{+}(\mathrm{g})$
2 $\mathrm{Rb}^{+}(\mathrm{aq})$
3 $\mathrm{Li}^{+}(\mathrm{aq})$
4 $\mathrm{Cs}^{+}(\mathrm{aq})$
Explanation:
Concept used (i) In gaseous state, more the value of $\frac{Z}{\mathrm{e}}$, smaller is the size of ion. (ii) In aqueous solution i.e. in hydrated- state, Smaller the gaseous ion, more it get hydrated and therefore more is its size. Among given options $\mathrm{Li}^{+}$(g) has smallest, size, so it hydrates to large extent and its size becomes largest. Therefore, $\mathrm{Li}(\mathrm{aq})$ has the largest, size.
