The first, second and third ionisation energies \( \left(\mathrm{E}_{1}, \mathrm{E}_{2}\right. \...

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The first, second and third ionisation energies \( \left(\mathrm{E}_{1}, \mathrm{E}_{2}\right. \) and \( \left.\mathrm{E}_{3}\right) \) for an element are \( 7 \mathrm{eV}, 12.5 \)
\( P \) \( \mathrm{eV} \) and \( 42.5 \mathrm{eV} \) respectively. The most stable oxidation state of the element will be:
(a) \( +1 \)
(b) \( +4 \)
(c) \( +3 \)
(d) \( +2 \)
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