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10 January, 01:55

Select all of the correct statements pertaining to the first and second ionization energies of different elements. check all that apply. the first ionization energy of n is smaller than that of p. the second ionization energy of na is larger than that of mg. the first ionization energy of n is larger than that of p. the second ionization energy of na is smaller than that of mg.

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  1. 10 January, 02:48
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    The First Ionization energy of Nitrogen is greater (Not smaller) than that of Phosphorous. This is because going down the group (N and P are in same group) the number of shells increases, the distance of valence electrons from Nucleus increases and hence due to less interaction between nucleus and valence electrons it becomes easy to knock out the electron.

    The second ionization energy of Na is larger than that of Mg because after first loss of electron Na has gained Noble Gas Configuration (Stable Configuration) and now requires greater energy to loose both second electron and Noble Gas Configuration. While Mg after second ionization attains Noble Gas Configuration hence it prices less energy.
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