Given below are two statements:Statement I: T | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Statement $I$: The electronic configuration of the ions after the first ionization are $B^+ (2s^2)$, $Al^+ (3s^2)$, and $Ga^+ (4s^2)$. As the prin

Vedclass · Accepted Answer

Statement $I$ is true but Statement $II$ is false

Vedclass · Answer

(C) Statement $I$: The electronic configuration of the ions after the first ionization are $B^+ (2s^2)$, $Al^+ (3s^2)$, and $Ga^+ (4s^2)$. As the principal quantum number increases from $B$ to $Ga$, the size of the ion increases, leading to a decrease in the ionization enthalpy. Thus, the order $B > Al > Ga$ is correct.Statement $II$: The general trend for the first ionization enthalpy in group $14$ is $C > Si > Ge > Sn < Pb$. Due to the poor shielding effect of $d$ and $f$ electrons in $Pb$, the effective nuclear charge increases, making the first ionization enthalpy of $Pb$ higher than that of $Sn$. The given order $Si < Ge < Pb < Sn$ is incorrect.

Given below are two statements:
Statement $I$: The second ionization enthalpy of $B$, $Al$ and $Ga$ is in the order of $B > Al > Ga$.
Statement $II$: The correct order in terms of first ionization enthalpy is $Si < Ge < Pb < Sn$.

Similar Questions

For $Mg$,the values of $\Delta_iH_1$ and $\Delta_iH_2$ are $178 \, kcal \, mol^{-1}$ and $348 \, kcal \, mol^{-1}$ respectively. The enthalpy change for the reaction $Mg \to Mg^{2+} + 2e^-$ is ............. $kcal \, mol^{-1}$.

Which of the following configurations represents atoms of the elements having the highest second ionization energy?

The ionisation energy of nitrogen is more than that of oxygen because :-

The first ionisation energy of $Na$,$B$,$N$ and $O$ atoms follows the order

The order of the magnitude of first ionisation potentials of $Be$,$B$,$N$ and $O$ is

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Given below are two statements:Statement $I$: The second ionization enthalpy of $B$, $Al$ and $Ga$ is in the order of $B > Al > Ga$.Statement $II$: The correct order in terms of first ionization enthalpy is $Si < Ge < Pb < Sn$.