04. Ionization Energy
Classification of Elements and Periodicity in Properties

89611 Amongst the elements with following electronic configurations, which one of them may have the highest ionization energy?

1 $\mathrm{Ne}\left[3 \mathrm{~s}^2 3 \mathrm{p}^2\right]$
2 $\operatorname{Ar}\left[3 \mathrm{~d}^{10} 4 \mathrm{~s}^2 4 \mathrm{p}^3\right]$
3 $\mathrm{Ne}\left[3 \mathrm{~s}^2 3 \mathrm{p}^1\right]$
4 $\mathrm{Ne}\left[3 \mathrm{~s}^2 3 \mathrm{p}^3\right]$
Classification of Elements and Periodicity in Properties

89636 Which one of the following electronic configuration corresponds to the highest value of ionisation potential?

1 $[\mathrm{Xe}] 6 \mathrm{~s}^2$
2 $[\mathrm{Ar}] 4 \mathrm{~s}^2 3 \mathrm{~d}^{10}$
3 $1 \mathrm{~s}^2$
4 $[\mathrm{Rn}] 7 \mathrm{~s}^2 6 \mathrm{~d}^1 5 \mathrm{f}^{14}$
Classification of Elements and Periodicity in Properties

89614 The first four ionization enthalpy values of an element are $191 \mathrm{kcal} \mathrm{mol}^{-1}, 578 \mathrm{kcal} \mathrm{mol}^{-1}, 872$ kcal $\mathrm{mol}^{-1}$ and $5962 \mathrm{kcal} \mathrm{mol}^{-1}$. The number of valence electrons in the element is

1 1
2 2
3 3
4 4
Classification of Elements and Periodicity in Properties

89615 First and second ionisation enthalpies of $\mathrm{Mg}$ are 737.76 and $1450.73 \mathrm{~J} \mathrm{~mol}^{-1}$ respectively. The energy required to convert all the atoms of magnesium to magnesium ions present in $24 \mathrm{~g}$ of magnesium vapours is

1 $24 \mathrm{~kJ}$
2 $2.188 \mathrm{~kJ}$
3 $12 \mathrm{~kJ}$
4 $4.253 \mathrm{~kJ}$
Classification of Elements and Periodicity in Properties

89611 Amongst the elements with following electronic configurations, which one of them may have the highest ionization energy?

1 $\mathrm{Ne}\left[3 \mathrm{~s}^2 3 \mathrm{p}^2\right]$
2 $\operatorname{Ar}\left[3 \mathrm{~d}^{10} 4 \mathrm{~s}^2 4 \mathrm{p}^3\right]$
3 $\mathrm{Ne}\left[3 \mathrm{~s}^2 3 \mathrm{p}^1\right]$
4 $\mathrm{Ne}\left[3 \mathrm{~s}^2 3 \mathrm{p}^3\right]$
Classification of Elements and Periodicity in Properties

89636 Which one of the following electronic configuration corresponds to the highest value of ionisation potential?

1 $[\mathrm{Xe}] 6 \mathrm{~s}^2$
2 $[\mathrm{Ar}] 4 \mathrm{~s}^2 3 \mathrm{~d}^{10}$
3 $1 \mathrm{~s}^2$
4 $[\mathrm{Rn}] 7 \mathrm{~s}^2 6 \mathrm{~d}^1 5 \mathrm{f}^{14}$
Classification of Elements and Periodicity in Properties

89614 The first four ionization enthalpy values of an element are $191 \mathrm{kcal} \mathrm{mol}^{-1}, 578 \mathrm{kcal} \mathrm{mol}^{-1}, 872$ kcal $\mathrm{mol}^{-1}$ and $5962 \mathrm{kcal} \mathrm{mol}^{-1}$. The number of valence electrons in the element is

1 1
2 2
3 3
4 4
Classification of Elements and Periodicity in Properties

89615 First and second ionisation enthalpies of $\mathrm{Mg}$ are 737.76 and $1450.73 \mathrm{~J} \mathrm{~mol}^{-1}$ respectively. The energy required to convert all the atoms of magnesium to magnesium ions present in $24 \mathrm{~g}$ of magnesium vapours is

1 $24 \mathrm{~kJ}$
2 $2.188 \mathrm{~kJ}$
3 $12 \mathrm{~kJ}$
4 $4.253 \mathrm{~kJ}$
Classification of Elements and Periodicity in Properties

89611 Amongst the elements with following electronic configurations, which one of them may have the highest ionization energy?

1 $\mathrm{Ne}\left[3 \mathrm{~s}^2 3 \mathrm{p}^2\right]$
2 $\operatorname{Ar}\left[3 \mathrm{~d}^{10} 4 \mathrm{~s}^2 4 \mathrm{p}^3\right]$
3 $\mathrm{Ne}\left[3 \mathrm{~s}^2 3 \mathrm{p}^1\right]$
4 $\mathrm{Ne}\left[3 \mathrm{~s}^2 3 \mathrm{p}^3\right]$
Classification of Elements and Periodicity in Properties

89636 Which one of the following electronic configuration corresponds to the highest value of ionisation potential?

1 $[\mathrm{Xe}] 6 \mathrm{~s}^2$
2 $[\mathrm{Ar}] 4 \mathrm{~s}^2 3 \mathrm{~d}^{10}$
3 $1 \mathrm{~s}^2$
4 $[\mathrm{Rn}] 7 \mathrm{~s}^2 6 \mathrm{~d}^1 5 \mathrm{f}^{14}$
Classification of Elements and Periodicity in Properties

89614 The first four ionization enthalpy values of an element are $191 \mathrm{kcal} \mathrm{mol}^{-1}, 578 \mathrm{kcal} \mathrm{mol}^{-1}, 872$ kcal $\mathrm{mol}^{-1}$ and $5962 \mathrm{kcal} \mathrm{mol}^{-1}$. The number of valence electrons in the element is

1 1
2 2
3 3
4 4
Classification of Elements and Periodicity in Properties

89615 First and second ionisation enthalpies of $\mathrm{Mg}$ are 737.76 and $1450.73 \mathrm{~J} \mathrm{~mol}^{-1}$ respectively. The energy required to convert all the atoms of magnesium to magnesium ions present in $24 \mathrm{~g}$ of magnesium vapours is

1 $24 \mathrm{~kJ}$
2 $2.188 \mathrm{~kJ}$
3 $12 \mathrm{~kJ}$
4 $4.253 \mathrm{~kJ}$
Classification of Elements and Periodicity in Properties

89611 Amongst the elements with following electronic configurations, which one of them may have the highest ionization energy?

1 $\mathrm{Ne}\left[3 \mathrm{~s}^2 3 \mathrm{p}^2\right]$
2 $\operatorname{Ar}\left[3 \mathrm{~d}^{10} 4 \mathrm{~s}^2 4 \mathrm{p}^3\right]$
3 $\mathrm{Ne}\left[3 \mathrm{~s}^2 3 \mathrm{p}^1\right]$
4 $\mathrm{Ne}\left[3 \mathrm{~s}^2 3 \mathrm{p}^3\right]$
Classification of Elements and Periodicity in Properties

89636 Which one of the following electronic configuration corresponds to the highest value of ionisation potential?

1 $[\mathrm{Xe}] 6 \mathrm{~s}^2$
2 $[\mathrm{Ar}] 4 \mathrm{~s}^2 3 \mathrm{~d}^{10}$
3 $1 \mathrm{~s}^2$
4 $[\mathrm{Rn}] 7 \mathrm{~s}^2 6 \mathrm{~d}^1 5 \mathrm{f}^{14}$
Classification of Elements and Periodicity in Properties

89614 The first four ionization enthalpy values of an element are $191 \mathrm{kcal} \mathrm{mol}^{-1}, 578 \mathrm{kcal} \mathrm{mol}^{-1}, 872$ kcal $\mathrm{mol}^{-1}$ and $5962 \mathrm{kcal} \mathrm{mol}^{-1}$. The number of valence electrons in the element is

1 1
2 2
3 3
4 4
Classification of Elements and Periodicity in Properties

89615 First and second ionisation enthalpies of $\mathrm{Mg}$ are 737.76 and $1450.73 \mathrm{~J} \mathrm{~mol}^{-1}$ respectively. The energy required to convert all the atoms of magnesium to magnesium ions present in $24 \mathrm{~g}$ of magnesium vapours is

1 $24 \mathrm{~kJ}$
2 $2.188 \mathrm{~kJ}$
3 $12 \mathrm{~kJ}$
4 $4.253 \mathrm{~kJ}$