Interpretation:
Whether the second ionization energy of aluminium or magnesium is greater has to be determined. Also, the reason for the same has to be explained.
Concept Introduction:
The energy that is needed to eliminate an electron from the isolated, neutral gaseous atom is known as ionization energy. It is represented by
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Chemistry: Principles and Practice
- Which of these isoelectronic ions, Ba2+, Cs+, or La3+, is (a) the largest? (b) the smallest? Explain your reasoning.arrow_forwardWhat neutral atoms are isoelectronic with the following ions? (a) Pb4+ (b) Br (c) S2 (d) Ni3+arrow_forwardAnswer the following questions about first ionization energies. (a) Generally ionization energies increase on proceeding across a period, but this is not true for magnesium (738 kJ/mol) and aluminium (578 kJ/mol). Explain this observation. (b) Explain why the ionization energy of phosphorus (1012 kJ/mol) is greater than that of sulphur (1000 kJ/mol) when the general trend in ionization energies in a period would predict the opposite.arrow_forward
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