Which of the following statements is NOT corr | vedclass

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(D) $1$. $He$ has the highest first ionization enthalpy $(\Delta_iH_1)$ among all elements due to its stable electronic configuration and small size.

Vedclass · Accepted Answer

The $\Delta_iH_1$ value for nitrogen is lower than that of oxygen.

Vedclass · Answer

(D) $1$. $He$ has the highest first ionization enthalpy $(\Delta_iH_1)$ among all elements due to its stable electronic configuration and small size. (Statement $A$ is correct.)$2$. Noble gases have completely filled valence shells,so they do not accept electrons easily,resulting in zero or positive electron gain enthalpy $(\Delta_{eg}H_1)$. (Statement $B$ is correct.)$3$. Fluorine is the most electronegative element in the periodic table. (Statement $C$ is correct.)$4$. Nitrogen $(1s^2 2s^2 2p^3)$ has a half-filled $p$-orbital,which is more stable than the electronic configuration of oxygen $(1s^2 2s^2 2p^4)$. Therefore,the $\Delta_iH_1$ of nitrogen is higher than that of oxygen. (Statement $D$ is incorrect.)

$A. S \rightarrow S^{-}$	$P. \text{Endothermic process}$
$B. N^{-} \rightarrow N$	$Q. \text{Exothermic process}$
$C. O^{-} \rightarrow O^{2-}$	$R. \text{Inert gas configuration in product}$
$D. P \rightarrow P^{-}$	$S. \text{Half filled configuration in product}$

Which of the following statements is $NOT$ correct?

Similar Questions

In general,the properties that decrease and increase down a group in the periodic table respectively are

The electronic configurations of four elements are:
$I. [Xe] \, 6s^1$
$II. [Xe] \, 4f^{14} \, 5d^1 \, 6s^2$
$III. [Ar] \, 4s^2 \, 4p^5$
$IV. [Ar] \, 3d^7 \, 4s^2$
Select the incorrect statement about these elements.

Which of the following statements is/are correct?

Which has maximum $EA$,$EN$ and $IP$ respectively $:-$
$A = 1s^2 \ 2s^2 \ 2p^6$
$B = 1s^2 \ 2s^2 \ 2p^6 \ 3s^2 \ 3p^5$
$C = 1s^2 \ 2s^2 \ 2p^5$
$D = 1s^2 \ 2s^2 \ 2p^6 \ 3s^1$

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