04. Ionization Energy
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Classification of Elements and Periodicity in Properties

89680 The first ionisation potential is maximum for:

1 Lithium
2 Uranium
3 Iron
4 Hydrogen
AIIMS-1998
Classification of Elements and Periodicity in Properties

89681 Which one of the following configurations represents atom of the element having the highest second ionization energy?

1 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^4$
2 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6$
3 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^1$
4 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2$
J and K CET-(1998)
Classification of Elements and Periodicity in Properties

89682 Identify the correct statement in respect of an element in a particular group of the periodic table?

1 A decrease is nuclear charge causes an increase in ionization energy.
2 An increase in nuclear charge causes an increase in ionization energy.
3 A decrease in atomic size decreases the ionization energy.
4 An increase in the number of valence electrons decreases the ionization energy.
J and K CET-(1997)
Classification of Elements and Periodicity in Properties

89690 First three ionisation energies (in $\mathrm{kJ} / \mathrm{mol}$ ) of three representative elements are given below:
$\begin{array}{clll}\text { Element } & \text { IE }_1 & \text { IE }_2 & \text { I E }_3 \\ \mathbf{P} & \mathbf{4 9 5 . 8} & \mathbf{4 5 6 2} & \mathbf{6 9 1 0} \\ \mathbf{Q} & 737.7 & \mathbf{1 4 5 1} & 7733 \\ \mathbf{R} & \mathbf{5 7 7 . 5} & \mathbf{1 8 1 7} & \mathbf{2 7 4 5}\end{array}$
Then incorrect option is:

1 Q: Alkaline earth metal
2 P: Alkali metals
3 R: s-block element
4 They belong to same period
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Classification of Elements and Periodicity in Properties

89680 The first ionisation potential is maximum for:

1 Lithium
2 Uranium
3 Iron
4 Hydrogen
AIIMS-1998
Classification of Elements and Periodicity in Properties

89681 Which one of the following configurations represents atom of the element having the highest second ionization energy?

1 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^4$
2 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6$
3 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^1$
4 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2$
J and K CET-(1998)
Classification of Elements and Periodicity in Properties

89682 Identify the correct statement in respect of an element in a particular group of the periodic table?

1 A decrease is nuclear charge causes an increase in ionization energy.
2 An increase in nuclear charge causes an increase in ionization energy.
3 A decrease in atomic size decreases the ionization energy.
4 An increase in the number of valence electrons decreases the ionization energy.
J and K CET-(1997)
Classification of Elements and Periodicity in Properties

89690 First three ionisation energies (in $\mathrm{kJ} / \mathrm{mol}$ ) of three representative elements are given below:
$\begin{array}{clll}\text { Element } & \text { IE }_1 & \text { IE }_2 & \text { I E }_3 \\ \mathbf{P} & \mathbf{4 9 5 . 8} & \mathbf{4 5 6 2} & \mathbf{6 9 1 0} \\ \mathbf{Q} & 737.7 & \mathbf{1 4 5 1} & 7733 \\ \mathbf{R} & \mathbf{5 7 7 . 5} & \mathbf{1 8 1 7} & \mathbf{2 7 4 5}\end{array}$
Then incorrect option is:

1 Q: Alkaline earth metal
2 P: Alkali metals
3 R: s-block element
4 They belong to same period
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Classification of Elements and Periodicity in Properties

89680 The first ionisation potential is maximum for:

1 Lithium
2 Uranium
3 Iron
4 Hydrogen
AIIMS-1998
Classification of Elements and Periodicity in Properties

89681 Which one of the following configurations represents atom of the element having the highest second ionization energy?

1 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^4$
2 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6$
3 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^1$
4 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2$
J and K CET-(1998)
Classification of Elements and Periodicity in Properties

89682 Identify the correct statement in respect of an element in a particular group of the periodic table?

1 A decrease is nuclear charge causes an increase in ionization energy.
2 An increase in nuclear charge causes an increase in ionization energy.
3 A decrease in atomic size decreases the ionization energy.
4 An increase in the number of valence electrons decreases the ionization energy.
J and K CET-(1997)
Classification of Elements and Periodicity in Properties

89690 First three ionisation energies (in $\mathrm{kJ} / \mathrm{mol}$ ) of three representative elements are given below:
$\begin{array}{clll}\text { Element } & \text { IE }_1 & \text { IE }_2 & \text { I E }_3 \\ \mathbf{P} & \mathbf{4 9 5 . 8} & \mathbf{4 5 6 2} & \mathbf{6 9 1 0} \\ \mathbf{Q} & 737.7 & \mathbf{1 4 5 1} & 7733 \\ \mathbf{R} & \mathbf{5 7 7 . 5} & \mathbf{1 8 1 7} & \mathbf{2 7 4 5}\end{array}$
Then incorrect option is:

1 Q: Alkaline earth metal
2 P: Alkali metals
3 R: s-block element
4 They belong to same period
For More Updates join with Us
Classification of Elements and Periodicity in Properties

89680 The first ionisation potential is maximum for:

1 Lithium
2 Uranium
3 Iron
4 Hydrogen
AIIMS-1998
Classification of Elements and Periodicity in Properties

89681 Which one of the following configurations represents atom of the element having the highest second ionization energy?

1 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^4$
2 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6$
3 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^1$
4 $1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2$
J and K CET-(1998)
Classification of Elements and Periodicity in Properties

89682 Identify the correct statement in respect of an element in a particular group of the periodic table?

1 A decrease is nuclear charge causes an increase in ionization energy.
2 An increase in nuclear charge causes an increase in ionization energy.
3 A decrease in atomic size decreases the ionization energy.
4 An increase in the number of valence electrons decreases the ionization energy.
J and K CET-(1997)
Classification of Elements and Periodicity in Properties

89690 First three ionisation energies (in $\mathrm{kJ} / \mathrm{mol}$ ) of three representative elements are given below:
$\begin{array}{clll}\text { Element } & \text { IE }_1 & \text { IE }_2 & \text { I E }_3 \\ \mathbf{P} & \mathbf{4 9 5 . 8} & \mathbf{4 5 6 2} & \mathbf{6 9 1 0} \\ \mathbf{Q} & 737.7 & \mathbf{1 4 5 1} & 7733 \\ \mathbf{R} & \mathbf{5 7 7 . 5} & \mathbf{1 8 1 7} & \mathbf{2 7 4 5}\end{array}$
Then incorrect option is:

1 Q: Alkaline earth metal
2 P: Alkali metals
3 R: s-block element
4 They belong to same period