Which of the following statements is incorrec | vedclass

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

Question

(B) The electronic configurations are: $Mg: [Ne] 3s^2$ $Na: [Ne] 3s^1$ Since $Mg$ has a fully filled $3s$ orbital,its first ionization energy $(IE_1)$

Vedclass · Accepted Answer

The second ionization energy of $Mg$ is greater than the second ionization energy of $Na$.

Vedclass · Answer

(B) The electronic configurations are: $Mg: [Ne] 3s^2$ $Na: [Ne] 3s^1$ Since $Mg$ has a fully filled $3s$ orbital,its first ionization energy $(IE_1)$ is higher than that of $Na$. Thus,$IE_1(Na) For second ionization energy $(IE_2)$: $Mg^+: [Ne] 3s^1 \rightarrow Mg^{2+} + e^-$ $Na^+: [Ne] 2s^2 2p^6 \rightarrow Na^{2+} + e^-$ Removing an electron from the stable noble gas configuration of $Na^+$ requires much higher energy than from $Mg^+$. Thus,$IE_2(Na) > IE_2(Mg)$. For third ionization energy $(IE_3)$: $Mg^{2+}: [Ne] \rightarrow Mg^{3+} + e^-$ $Al^{2+}: [Ne] 3s^1 \rightarrow Al^{3+} + e^-$ Removing an electron from the stable noble gas configuration of $Mg^{2+}$ requires much higher energy than from $Al^{2+}$. Thus,$IE_3(Mg) > IE_3(Al)$. Statement $B$ is incorrect because $IE_2(Na) > IE_2(Mg)$.

Element	Ionization energy $1^{st}$ $(kJ/mol)$	Ionization energy $2^{nd}$ $(kJ/mol)$
$X$	$495$	$4563$
$Y$	$731$	$1450$

Which of the following statements is incorrect?

Similar Questions

Identify the elements $X$ and $Y$ using the ionisation energy values given below :

Element Ionization energy $1^{st}$ $(kJ/mol)$ Ionization energy $2^{nd}$ $(kJ/mol)$

$X$ $495$ $4563$

$Y$ $731$ $1450$

Element having highest $I.P.$ value is

In the given graph,which point represents an alkali metal with the least atomic number?

The correct order of the second ionization energy of $C$,$N$,$O$,and $F$ is :-

The first ionisation potential is maximum for

Vedclass Test Series

Exam Paper Generator

Online Exam Module