Question
Which has a higher ionization energy: chlorine (Cl) or magnesium (Mg)? Why? Select the best answer.(1 point)
Responses
A. Cl; it takes much more energy to pull an electron away from a valence shell that is nearly full.
B. Mg; magnesium has more valence electrons than chlorine.
C. Mg; it takes more energy to pull two electrons away from magnesium(Mg) than it does to take them from chlorine(Cl).
D. Cl; it takes less energy to add an electron to a valence shell that is nearly full.
Responses
A. Cl; it takes much more energy to pull an electron away from a valence shell that is nearly full.
B. Mg; magnesium has more valence electrons than chlorine.
C. Mg; it takes more energy to pull two electrons away from magnesium(Mg) than it does to take them from chlorine(Cl).
D. Cl; it takes less energy to add an electron to a valence shell that is nearly full.
Answers
GPT-4o mini
The correct answer is:
**A. Cl; it takes much more energy to pull an electron away from a valence shell that is nearly full.**
Chlorine has a higher ionization energy compared to magnesium because it is closer to having a full valence shell (7 valence electrons) and requires significantly more energy to remove an electron, compared to magnesium, which has only 2 valence electrons and is further from having a full outer shell.
**A. Cl; it takes much more energy to pull an electron away from a valence shell that is nearly full.**
Chlorine has a higher ionization energy compared to magnesium because it is closer to having a full valence shell (7 valence electrons) and requires significantly more energy to remove an electron, compared to magnesium, which has only 2 valence electrons and is further from having a full outer shell.