STANDARD Chemistry Ionization Energy MCQ Question
The first ionization energy of magnesium is smaller as compared to that of elements X and Y, but higher than that of Z, the elements X, Y and Z, respectively, are
Chlorine, lithium and sodium
Argon, lithium and sodium
Argon, chlorine and sodium
Neon, sodium and chlorine
Correct Answer
Detailed Explanation
The 1st ionization energy order of the 3rd period is Na < Al < Mg < Si < S < P < Cl < Ar. X and Y are Ar and Cl, Z is sodium (Na).
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