The ionisation enthalpies of elements of the second period are given below: Ionisation enthalpy / $kcal \, mol^{-1}$: $520, 899, 801, 1086, 1402, 1314, 1681, 2080$. Match the correct enthalpy with the elements and complete the graph given in Fig. Also,write the symbols of the elements with their atomic numbers.

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(N/A) The elements of the second period ($Z=3$ to $10$) and their corresponding first ionisation enthalpies $(IE_1)$ in $kcal \, mol^{-1}$ are as follows:
$1$. $Li$ $(Z=3)$: $520$
$2$. $Be$ $(Z=4)$: $899$
$3$. $B$ $(Z=5)$: $801$
$4$. $C$ $(Z=6)$: $1086$
$5$. $N$ $(Z=7)$: $1402$
$6$. $O$ $(Z=8)$: $1314$
$7$. $F$ $(Z=9)$: $1681$
$8$. $Ne$ $(Z=10)$: $2080$
General Trend: As we move from left to right across a period,the atomic radius decreases and the effective nuclear charge increases,leading to a general increase in ionisation enthalpy.
Exceptions:
- $Be$ $(2s^2)$ has a higher $IE_1$ than $B$ $(2s^2 2p^1)$ because the $2s$ orbital is fully filled and more stable.
- $N$ $(2s^2 2p^3)$ has a higher $IE_1$ than $O$ $(2s^2 2p^4)$ because the $2p$ subshell is half-filled,providing extra stability.

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Which of the following orders is not correct about the property shown against it?

Identify the incorrect statement.

Which of the following statements is not correct regarding the classification of elements in the periodic table?

Given below are two statements:
Statement $I$ : The correct order of first ionization enthalpy values of $Li, Na, F$ and $Cl$ is $Na < Li < Cl < F$.
Statement $II$ : The correct order of negative electron gain enthalpy values of $Li, Na, F$ and $Cl$ is $Na < Li < F < Cl$.
In the light of the above statements,choose the correct answer from the options given below :

Which of the following orders is correct for the property mentioned in brackets?

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