02. Atomic and Ionic Radii
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Classification of Elements and Periodicity in Properties

89443 Which of the following statement is correct about "shielding effect" ?
1. It is effective, when the orbitals in the inner shells are completely filled.
2. Inner shells do not show any effect.
3. With increase of shielding down the group, ionisation energy increases.
4. With increasing nuclear charge, the shielding effect increases.
2. Inner shells are show effect. So, statement 2 is incorrect.
3. Shielding effect as well as ionisation energy decrease down the group. So, statement 3 is incorrect.
4. With increase in nuclear charge, shielding effect decreases. So, statement 4 is incorrect.

1 1
2 2
3 3
4 4
Shift-I
Classification of Elements and Periodicity in Properties

89444 Which of the following statement is correct about "shielding effect" ?
1. It is effective, when the orbitals in the inner shells are completely filled.
2. Inner shells do not show any effect.
3. With increase of shielding down the group, ionisation energy increases.
4. With increasing nuclear charge, the shielding effect increases.
2. Inner shells are show effect. So, statement 2 is incorrect.
3. Shielding effect as well as ionisation energy decrease down the group. So, statement 3 is incorrect.
4. With increase in nuclear charge, shielding effect decreases. So, statement 4 is incorrect.

1 1
2 2
3 3
4 4
Shift-I
Classification of Elements and Periodicity in Properties

89450 The increasing order of size for the ionic species $\mathrm{Na}^{+}, \mathrm{F}^{-}, \mathrm{O}^{2-}, \mathrm{Mg}^{2+}$ is

1 $\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}<\mathrm{Mg}_2^{2+}$
2 $\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}$
3 $\mathrm{O}^{2-}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}$
4 $\mathrm{O}^{2-}<\mathrm{F}^{-}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}$
Assam CEE-2019
Classification of Elements and Periodicity in Properties

89469 Consider the following ions:
1. $\mathrm{Na}^{+}$
2. $\mathrm{Al}^{3+}$
3. $\mathrm{Si}^{4+}$
In naturally occurring zeolites which of the above ions are present?

1 1 and 2 only
2 1 and 3 only
3 2 and 3 only
4 1,2 and 3
SCRA 2012
Classification of Elements and Periodicity in Properties

89458 Arrange the following as per increasing order of ionic size $\mathrm{Mg}^{2+}, \mathrm{O}^{2-}, \mathrm{Na}^{+}, \mathrm{F}^{-}, \mathrm{N}^{3-}$

1 $\mathrm{N}^{3-}<\mathrm{O}^{2-}<\mathrm{F}^{-}<\mathrm{Na}^{+}<\mathrm{Mg}^{2+}$
2 $\mathrm{O}^{2-}<\mathrm{F}^{-}<\mathrm{N}^3<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}$
3 $\mathrm{Na}^{+}<\mathrm{Mg}^{2+}<\mathrm{O}^{2-}<\mathrm{N}^{3-}<\mathrm{F}^{-}$
4 $\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}<\mathrm{N}^{3-}$
CG PET -2017
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Classification of Elements and Periodicity in Properties

89443 Which of the following statement is correct about "shielding effect" ?
1. It is effective, when the orbitals in the inner shells are completely filled.
2. Inner shells do not show any effect.
3. With increase of shielding down the group, ionisation energy increases.
4. With increasing nuclear charge, the shielding effect increases.
2. Inner shells are show effect. So, statement 2 is incorrect.
3. Shielding effect as well as ionisation energy decrease down the group. So, statement 3 is incorrect.
4. With increase in nuclear charge, shielding effect decreases. So, statement 4 is incorrect.

1 1
2 2
3 3
4 4
Shift-I
Classification of Elements and Periodicity in Properties

89444 Which of the following statement is correct about "shielding effect" ?
1. It is effective, when the orbitals in the inner shells are completely filled.
2. Inner shells do not show any effect.
3. With increase of shielding down the group, ionisation energy increases.
4. With increasing nuclear charge, the shielding effect increases.
2. Inner shells are show effect. So, statement 2 is incorrect.
3. Shielding effect as well as ionisation energy decrease down the group. So, statement 3 is incorrect.
4. With increase in nuclear charge, shielding effect decreases. So, statement 4 is incorrect.

1 1
2 2
3 3
4 4
Shift-I
Classification of Elements and Periodicity in Properties

89450 The increasing order of size for the ionic species $\mathrm{Na}^{+}, \mathrm{F}^{-}, \mathrm{O}^{2-}, \mathrm{Mg}^{2+}$ is

1 $\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}<\mathrm{Mg}_2^{2+}$
2 $\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}$
3 $\mathrm{O}^{2-}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}$
4 $\mathrm{O}^{2-}<\mathrm{F}^{-}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}$
Assam CEE-2019
Classification of Elements and Periodicity in Properties

89469 Consider the following ions:
1. $\mathrm{Na}^{+}$
2. $\mathrm{Al}^{3+}$
3. $\mathrm{Si}^{4+}$
In naturally occurring zeolites which of the above ions are present?

1 1 and 2 only
2 1 and 3 only
3 2 and 3 only
4 1,2 and 3
SCRA 2012
Classification of Elements and Periodicity in Properties

89458 Arrange the following as per increasing order of ionic size $\mathrm{Mg}^{2+}, \mathrm{O}^{2-}, \mathrm{Na}^{+}, \mathrm{F}^{-}, \mathrm{N}^{3-}$

1 $\mathrm{N}^{3-}<\mathrm{O}^{2-}<\mathrm{F}^{-}<\mathrm{Na}^{+}<\mathrm{Mg}^{2+}$
2 $\mathrm{O}^{2-}<\mathrm{F}^{-}<\mathrm{N}^3<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}$
3 $\mathrm{Na}^{+}<\mathrm{Mg}^{2+}<\mathrm{O}^{2-}<\mathrm{N}^{3-}<\mathrm{F}^{-}$
4 $\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}<\mathrm{N}^{3-}$
CG PET -2017
For More Updates join with Us
Classification of Elements and Periodicity in Properties

89443 Which of the following statement is correct about "shielding effect" ?
1. It is effective, when the orbitals in the inner shells are completely filled.
2. Inner shells do not show any effect.
3. With increase of shielding down the group, ionisation energy increases.
4. With increasing nuclear charge, the shielding effect increases.
2. Inner shells are show effect. So, statement 2 is incorrect.
3. Shielding effect as well as ionisation energy decrease down the group. So, statement 3 is incorrect.
4. With increase in nuclear charge, shielding effect decreases. So, statement 4 is incorrect.

1 1
2 2
3 3
4 4
Shift-I
Classification of Elements and Periodicity in Properties

89444 Which of the following statement is correct about "shielding effect" ?
1. It is effective, when the orbitals in the inner shells are completely filled.
2. Inner shells do not show any effect.
3. With increase of shielding down the group, ionisation energy increases.
4. With increasing nuclear charge, the shielding effect increases.
2. Inner shells are show effect. So, statement 2 is incorrect.
3. Shielding effect as well as ionisation energy decrease down the group. So, statement 3 is incorrect.
4. With increase in nuclear charge, shielding effect decreases. So, statement 4 is incorrect.

1 1
2 2
3 3
4 4
Shift-I
Classification of Elements and Periodicity in Properties

89450 The increasing order of size for the ionic species $\mathrm{Na}^{+}, \mathrm{F}^{-}, \mathrm{O}^{2-}, \mathrm{Mg}^{2+}$ is

1 $\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}<\mathrm{Mg}_2^{2+}$
2 $\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}$
3 $\mathrm{O}^{2-}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}$
4 $\mathrm{O}^{2-}<\mathrm{F}^{-}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}$
Assam CEE-2019
Classification of Elements and Periodicity in Properties

89469 Consider the following ions:
1. $\mathrm{Na}^{+}$
2. $\mathrm{Al}^{3+}$
3. $\mathrm{Si}^{4+}$
In naturally occurring zeolites which of the above ions are present?

1 1 and 2 only
2 1 and 3 only
3 2 and 3 only
4 1,2 and 3
SCRA 2012
Classification of Elements and Periodicity in Properties

89458 Arrange the following as per increasing order of ionic size $\mathrm{Mg}^{2+}, \mathrm{O}^{2-}, \mathrm{Na}^{+}, \mathrm{F}^{-}, \mathrm{N}^{3-}$

1 $\mathrm{N}^{3-}<\mathrm{O}^{2-}<\mathrm{F}^{-}<\mathrm{Na}^{+}<\mathrm{Mg}^{2+}$
2 $\mathrm{O}^{2-}<\mathrm{F}^{-}<\mathrm{N}^3<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}$
3 $\mathrm{Na}^{+}<\mathrm{Mg}^{2+}<\mathrm{O}^{2-}<\mathrm{N}^{3-}<\mathrm{F}^{-}$
4 $\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}<\mathrm{N}^{3-}$
CG PET -2017
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Classification of Elements and Periodicity in Properties

89443 Which of the following statement is correct about "shielding effect" ?
1. It is effective, when the orbitals in the inner shells are completely filled.
2. Inner shells do not show any effect.
3. With increase of shielding down the group, ionisation energy increases.
4. With increasing nuclear charge, the shielding effect increases.
2. Inner shells are show effect. So, statement 2 is incorrect.
3. Shielding effect as well as ionisation energy decrease down the group. So, statement 3 is incorrect.
4. With increase in nuclear charge, shielding effect decreases. So, statement 4 is incorrect.

1 1
2 2
3 3
4 4
Shift-I
Classification of Elements and Periodicity in Properties

89444 Which of the following statement is correct about "shielding effect" ?
1. It is effective, when the orbitals in the inner shells are completely filled.
2. Inner shells do not show any effect.
3. With increase of shielding down the group, ionisation energy increases.
4. With increasing nuclear charge, the shielding effect increases.
2. Inner shells are show effect. So, statement 2 is incorrect.
3. Shielding effect as well as ionisation energy decrease down the group. So, statement 3 is incorrect.
4. With increase in nuclear charge, shielding effect decreases. So, statement 4 is incorrect.

1 1
2 2
3 3
4 4
Shift-I
Classification of Elements and Periodicity in Properties

89450 The increasing order of size for the ionic species $\mathrm{Na}^{+}, \mathrm{F}^{-}, \mathrm{O}^{2-}, \mathrm{Mg}^{2+}$ is

1 $\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}<\mathrm{Mg}_2^{2+}$
2 $\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}$
3 $\mathrm{O}^{2-}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}$
4 $\mathrm{O}^{2-}<\mathrm{F}^{-}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}$
Assam CEE-2019
Classification of Elements and Periodicity in Properties

89469 Consider the following ions:
1. $\mathrm{Na}^{+}$
2. $\mathrm{Al}^{3+}$
3. $\mathrm{Si}^{4+}$
In naturally occurring zeolites which of the above ions are present?

1 1 and 2 only
2 1 and 3 only
3 2 and 3 only
4 1,2 and 3
SCRA 2012
Classification of Elements and Periodicity in Properties

89458 Arrange the following as per increasing order of ionic size $\mathrm{Mg}^{2+}, \mathrm{O}^{2-}, \mathrm{Na}^{+}, \mathrm{F}^{-}, \mathrm{N}^{3-}$

1 $\mathrm{N}^{3-}<\mathrm{O}^{2-}<\mathrm{F}^{-}<\mathrm{Na}^{+}<\mathrm{Mg}^{2+}$
2 $\mathrm{O}^{2-}<\mathrm{F}^{-}<\mathrm{N}^3<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}$
3 $\mathrm{Na}^{+}<\mathrm{Mg}^{2+}<\mathrm{O}^{2-}<\mathrm{N}^{3-}<\mathrm{F}^{-}$
4 $\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}<\mathrm{N}^{3-}$
CG PET -2017
Join With Us for More Updates
Classification of Elements and Periodicity in Properties

89443 Which of the following statement is correct about "shielding effect" ?
1. It is effective, when the orbitals in the inner shells are completely filled.
2. Inner shells do not show any effect.
3. With increase of shielding down the group, ionisation energy increases.
4. With increasing nuclear charge, the shielding effect increases.
2. Inner shells are show effect. So, statement 2 is incorrect.
3. Shielding effect as well as ionisation energy decrease down the group. So, statement 3 is incorrect.
4. With increase in nuclear charge, shielding effect decreases. So, statement 4 is incorrect.

1 1
2 2
3 3
4 4
Shift-I
Classification of Elements and Periodicity in Properties

89444 Which of the following statement is correct about "shielding effect" ?
1. It is effective, when the orbitals in the inner shells are completely filled.
2. Inner shells do not show any effect.
3. With increase of shielding down the group, ionisation energy increases.
4. With increasing nuclear charge, the shielding effect increases.
2. Inner shells are show effect. So, statement 2 is incorrect.
3. Shielding effect as well as ionisation energy decrease down the group. So, statement 3 is incorrect.
4. With increase in nuclear charge, shielding effect decreases. So, statement 4 is incorrect.

1 1
2 2
3 3
4 4
Shift-I
Classification of Elements and Periodicity in Properties

89450 The increasing order of size for the ionic species $\mathrm{Na}^{+}, \mathrm{F}^{-}, \mathrm{O}^{2-}, \mathrm{Mg}^{2+}$ is

1 $\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}<\mathrm{Mg}_2^{2+}$
2 $\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}$
3 $\mathrm{O}^{2-}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}$
4 $\mathrm{O}^{2-}<\mathrm{F}^{-}<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}$
Assam CEE-2019
Classification of Elements and Periodicity in Properties

89469 Consider the following ions:
1. $\mathrm{Na}^{+}$
2. $\mathrm{Al}^{3+}$
3. $\mathrm{Si}^{4+}$
In naturally occurring zeolites which of the above ions are present?

1 1 and 2 only
2 1 and 3 only
3 2 and 3 only
4 1,2 and 3
SCRA 2012
Classification of Elements and Periodicity in Properties

89458 Arrange the following as per increasing order of ionic size $\mathrm{Mg}^{2+}, \mathrm{O}^{2-}, \mathrm{Na}^{+}, \mathrm{F}^{-}, \mathrm{N}^{3-}$

1 $\mathrm{N}^{3-}<\mathrm{O}^{2-}<\mathrm{F}^{-}<\mathrm{Na}^{+}<\mathrm{Mg}^{2+}$
2 $\mathrm{O}^{2-}<\mathrm{F}^{-}<\mathrm{N}^3<\mathrm{Mg}^{2+}<\mathrm{Na}^{+}$
3 $\mathrm{Na}^{+}<\mathrm{Mg}^{2+}<\mathrm{O}^{2-}<\mathrm{N}^{3-}<\mathrm{F}^{-}$
4 $\mathrm{Mg}^{2+}<\mathrm{Na}^{+}<\mathrm{F}^{-}<\mathrm{O}^{2-}<\mathrm{N}^{3-}$
CG PET -2017