Class 11ChemistryClassification of Elements and Periodicity in PropertiesMix Examples - Classification of Elements and Periodicity in Properties
MediumState whether the following statements are true or false:
$(i)$ Higher the ionization enthalpy,lower the screening effect.
$(ii)$ The ionization enthalpy of $Be$ is higher than that of $B$.
$(iii)$ The shielding effect increases as we move from left to right in a period.
$(iv)$ The increasing order of the first ionization energy is $B < Be < O < N$.
$(i)$ Higher the ionization enthalpy,lower the screening effect.
$(ii)$ The ionization enthalpy of $Be$ is higher than that of $B$.
$(iii)$ The shielding effect increases as we move from left to right in a period.
$(iv)$ The increasing order of the first ionization energy is $B < Be < O < N$.
(A) $(i)$ True. Higher ionization enthalpy implies stronger nuclear attraction,which is often associated with a lower screening effect.
$(ii)$ True. $Be$ $(1s^2 2s^2)$ has a fully filled $2s$ orbital,which is more stable than the $2p^1$ configuration of $B$.
$(iii)$ False. The shielding effect remains approximately constant as we move across a period because electrons are added to the same shell.
$(iv)$ True. The order $B < Be < O < N$ is correct due to the stability of fully filled and half-filled orbitals.
$(ii)$ True. $Be$ $(1s^2 2s^2)$ has a fully filled $2s$ orbital,which is more stable than the $2p^1$ configuration of $B$.
$(iii)$ False. The shielding effect remains approximately constant as we move across a period because electrons are added to the same shell.
$(iv)$ True. The order $B < Be < O < N$ is correct due to the stability of fully filled and half-filled orbitals.
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Similar Questions
Which of the following statements are not correct?
$A.$ The electron gain enthalpy of $F$ is more negative than that of $Cl$.
$B.$ Ionization enthalpy decreases in a group of the periodic table.
$C.$ The electronegativity of an atom depends upon the atoms bonded to it.
$D.$ $Al_2O_3$ and $NO$ are examples of amphoteric oxides.
Choose the most appropriate answer from the options given below:
$A.$ The electron gain enthalpy of $F$ is more negative than that of $Cl$.
$B.$ Ionization enthalpy decreases in a group of the periodic table.
$C.$ The electronegativity of an atom depends upon the atoms bonded to it.
$D.$ $Al_2O_3$ and $NO$ are examples of amphoteric oxides.
Choose the most appropriate answer from the options given below:
Choose the correct option regarding the following statements:
Statement-$1$: Nitrogen has lesser electron gain enthalpy than oxygen.
Statement-$2$: Oxygen has lesser ionization enthalpy than nitrogen.
Statement-$1$: Nitrogen has lesser electron gain enthalpy than oxygen.
Statement-$2$: Oxygen has lesser ionization enthalpy than nitrogen.
Match List-$I$ with List-$II$:
List-$I$ List-$II$ $A$. $Al^{3+} < Mg^{2+} < Na^{+} < F^{-}$ $I$. Ionisation Enthalpy $B$. $B < C < O < N$ $II$. Metallic character $C$. $B < Al < Mg < K$ $III$. Electronegativity $D$. $Si < P < S < Cl$ $IV$. Ionic radii
Choose the correct answer from the options given below:
| List-$I$ | List-$II$ |
| $A$. $Al^{3+} < Mg^{2+} < Na^{+} < F^{-}$ | $I$. Ionisation Enthalpy |
| $B$. $B < C < O < N$ | $II$. Metallic character |
| $C$. $B < Al < Mg < K$ | $III$. Electronegativity |
| $D$. $Si < P < S < Cl$ | $IV$. Ionic radii |
Choose the correct answer from the options given below:
DifficultJEE MAIN 2025
View SolutionObserve the following statements:
$I$. The physical and chemical properties of elements are periodic functions of their electronic configuration.
$II$. Electronegativity of fluorine is less than the electronegativity of chlorine.
$III$. Electropositive nature decreases from top to bottom in a group.
The correct answer is:
$I$. The physical and chemical properties of elements are periodic functions of their electronic configuration.
$II$. Electronegativity of fluorine is less than the electronegativity of chlorine.
$III$. Electropositive nature decreases from top to bottom in a group.
The correct answer is:
The statement that is true for the long form of the periodic table is
MediumIIT 1988
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