Question
The CORRECT order of first ionisation enthalpy is:
✓
Answer
b
Mg$\,$AIPS $\rightarrow$ I.E. order $\rightarrow \mathrm{Al}\,<\,\mathrm{Mg}\,<\,\mathrm{S}\,<\,\mathrm{P}$
Mg$\,$AIPS $\rightarrow$ I.E. order $\rightarrow \mathrm{Al}\,<\,\mathrm{Mg}\,<\,\mathrm{S}\,<\,\mathrm{P}$
$\quad\quad\quad\quad\quad\quad\mathrm{Mg}$ $\quad\quad\mathrm{Al}$ $\quad\quad\quad\mathrm{P}$ $\quad\quad\quad\mathrm{S}$
Valence $\left[\mathrm{N}_{\mathrm{e}}\right]: 3 \mathrm{~s}^{2}$ $\quad3 \mathrm{~s}^{2} 3 \mathrm{p}^{1}$ $\quad3 \mathrm{~s}^{2} 3 \mathrm{p}^{3} \quad3 \mathrm{~s}^{2} 3 \mathrm{p}^{4}$
$\quad\quad\quad\quad\quad\quad\uparrow$ $\quad\quad\quad\quad\quad\quad\uparrow$
$\quad\quad\quad\quad\quad$Full Filled Stable $\quad$Half Filled Stable
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