Question
Which of the following has the lowest ionisation enthalpy?(a) $4 s^{1}$$\square$ (b) $3 d^{2}$(c) $3 p^{6}$$\square$ (d) $2 p^{6}$
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Ionisation enthalpy is the energy required to remove an electron from the outermost valence shell of an atom. Show more…
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In the following, the element with the highest ionization energy is (a) $[\mathrm{Ne}] 3 \mathrm{~s}^{2} 3 \mathrm{p}^{1}$ (b) $[\mathrm{Ne}] 3 \mathrm{~s}^{2} 3 \mathrm{p}^{3}$ (c) $[\mathrm{Ne}] 3 \mathrm{~s}^{2} 3 \mathrm{p}^{2}$ (d) $[\mathrm{Ne}] 3 \mathrm{~s}^{2} 3 \mathrm{p} 4$
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