(A) The elements $A, B$ and $C$ are Lithium $(Li)$,Sodium $(Na)$ and Potassium $(K)$ respectively,which belong to Group $1$ of the periodic table.As w

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(A) The elements $A, B$ and $C$ are Lithium $(Li)$,Sodium $(Na)$ and Potassium $(K)$ respectively,which belong to Group $1$ of the periodic table.As we move down the group,the atomic size increases due to the addition of new shells.Ionization potential is inversely proportional to the atomic size.Therefore,as the atomic size increases from $A$ to $C$,the energy required to remove the valence electron decreases.The correct order of first ionization potential is $A > B > C$.

Class 11 Chemistry Classification of Elements and Periodicity in Properties Ionisation energy

Medium

The electronic configurations of elements $A, B$ and $C$ are $[He] 2s^1$,$[Ne] 3s^1$ and $[Ar] 4s^1$ respectively. Which one of the following orders is correct for the first ionization potentials (in $kJ \ mol^{-1}$) of $A, B$ and $C$?

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A
$A > B > C$
B
$C > B > A$
C
$B > C > A$
D
$C > A > B$

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Class 11

Chemistry Questions

Chapter

Classification of Elements and Periodicity in Properties

Subtopic

Ionisation energy

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Which of the following electronic configurations represents the atom with the lowest first ionization enthalpy?

Medium

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Why does the successive ionization enthalpy of an element increase in the order: $1^{st} < 2^{nd} < 3^{rd}$?

Medium

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$A$ sudden large jump between the values of second and third ionisation energies of an element would be associated with the electronic configuration:

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The $IE_1$ and $IE_2$ of three elements $A$,$B$,and $C$ are given as : ( $IE$ in $kJ/mol$ )

Element $A, B, C$

$IE_1$ $400, 550, 1150$

$IE_2$ $2650, 1070, 2090$

Identify the element which represents a nonmetal.

Element	$A, B, C$
$IE_1$	$400, 550, 1150$
$IE_2$	$2650, 1070, 2090$

Medium

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Which of the following statements is correct about ionization potential?

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The electronic configurations of elements $A, B$ and $C$ are $[He] 2s^1$,$[Ne] 3s^1$ and $[Ar] 4s^1$ respectively. Which one of the following orders is correct for the first ionization potentials (in $kJ \ mol^{-1}$) of $A, B$ and $C$?

Similar Questions

Which of the following electronic configurations represents the atom with the lowest first ionization enthalpy?

Why does the successive ionization enthalpy of an element increase in the order: $1^{st} < 2^{nd} < 3^{rd}$?

$A$ sudden large jump between the values of second and third ionisation energies of an element would be associated with the electronic configuration:

The $IE_1$ and $IE_2$ of three elements $A$,$B$,and $C$ are given as : ( $IE$ in $kJ/mol$ ) Element $A, B, C$ $IE_1$ $400, 550, 1150$ $IE_2$ $2650, 1070, 2090$ Identify the element which represents a nonmetal.

Which of the following statements is correct about ionization potential?

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The $IE_1$ and $IE_2$ of three elements $A$,$B$,and $C$ are given as : ( $IE$ in $kJ/mol$ )

Element $A, B, C$

$IE_1$ $400, 550, 1150$

$IE_2$ $2650, 1070, 2090$

Identify the element which represents a nonmetal.