The second ionization energy value of magnesium ion required for the removal of the second electron is?
Correct answer: D. 1451 KJ/mol
- A. 135 KJ/mol
- B. 145 KJ/mol
- C. 155 KJ/mol
- D. 1451 KJ/mol
Explanation
Elements with a greater number of electrons have more than one value of ionization energy. So, for magnesium, the first ionization energy value is the energy required to remove the first electron. IE1 = 738 kJ/molSimilarly, the second ionization energy value is the energy required to remove the second electron from a positively charged ion.nIE2 = 1451kJ/molPTB XII Chap # 1 page # 6 & 7
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