Another exception occurs between nitrogen and oxygen. Oxygen has a smaller ionization energy than nitrogen even though it lies to the right of it in the same period. Select the statement that explains this exception to the trend in ionization energy. Oxygen has one more electron than nitrogen in its outer shell. This extra electron decreases the shielding of the other electrons in the outer shell and makes it easier to remove an electron from oxygen. An electron is removed from the 2s orbital in oxygen, whereas an electron is removed from the 2p orbitals in nitrogen. It is easier to remove a 2s electron than a 2p electron. Nitrogen has three unpaired electrons in the 2p orbitals, whereas oxygen has two unpaired electrons and two paired electrons in the 2p orbitals. The repulsion between the paired 2p electrons in oxygen increases their energy, making one of them easier to remove. Nitrogen has three unpaired electrons in the 2p orbitals, whereas oxygen has two unpaired electrons and two paired electrons in the 2p orbitals. When an electron is removed from nitrogen, it causes the remaining two 2p electrons to pair. The combined energy of these two processes is greater than the energy needed to remove a 2p electron from oxygen.
Another exception occurs between nitrogen and oxygen. Oxygen has a smaller ionization energy than nitrogen even though it lies to the right of it in the same period. Select the statement that explains this exception to the trend in ionization energy. Oxygen has one more electron than nitrogen in its outer shell. This extra electron decreases the shielding of the other electrons in the outer shell and makes it easier to remove an electron from oxygen. An electron is removed from the 2s orbital in oxygen, whereas an electron is removed from the 2p orbitals in nitrogen. It is easier to remove a 2s electron than a 2p electron. Nitrogen has three unpaired electrons in the 2p orbitals, whereas oxygen has two unpaired electrons and two paired electrons in the 2p orbitals. The repulsion between the paired 2p electrons in oxygen increases their energy, making one of them easier to remove. Nitrogen has three unpaired electrons in the 2p orbitals, whereas oxygen has two unpaired electrons and two paired electrons in the 2p orbitals. When an electron is removed from nitrogen, it causes the remaining two 2p electrons to pair. The combined energy of these two processes is greater than the energy needed to remove a 2p electron from oxygen.
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter2: Atomic Structure And Periodicity
Section: Chapter Questions
Problem 9RQ
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Transcribed Image Text:Another exception occurs between nitrogen and oxygen. Oxygen has a smaller ionization energy than nitrogen even though it lies
to the right of it in the same period.
Select the statement that explains this exception to the trend in ionization energy.
Oxygen has one more electron than nitrogen in its outer shell. This extra electron decreases the shielding of the other
electrons in the outer shell and makes it easier to remove an electron from oxygen.
An electron is removed from the 2s orbital in oxygen, whereas an electron is removed from the 2p orbitals in nitrogen.
It is easier to remove a 2s electron than a 2p electron.
Nitrogen has three unpaired electrons in the 2p orbitals, whereas oxygen has two unpaired electrons and two paired
electrons in the 2p orbitals. The repulsion between the paired 2p electrons in oxygen increases their energy, making one
of them easier to remove.
Nitrogen has three unpaired electrons in the 2p orbitals, whereas oxygen has two unpaired electrons and two paired
electrons in the 2p orbitals. When an electron is removed from nitrogen, it causes the remaining two 2p electrons to pair.
The combined energy of these two processes is greater than the energy needed to remove a 2p electron from oxygen.
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