Question detail
Explain how the ions formed from Group 1 and Group 7 elements achieve noble gas electronic structures.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Chemical bonds, ionic, covalent and metallic
Question
Explain how the ions formed from Group 1 and Group 7 elements achieve noble gas electronic structures.
Answer
Group 1 elements lose one electron to form positive ions, achieving the electronic structure of the nearest noble gas. Group 7 elements gain one electron to form negative ions, also achieving a noble gas electronic structure.
Explanation
This answer demonstrates understanding of how electron transfer leads to the formation of ions that resemble noble gases. The question tests the ability to link group elements to their ionic forms and noble gas configurations.
Common mistake
Misunderstanding Noble Gas Structures
Students often confuse the electronic structure of ions with that of noble gases, thinking that all ions have the same number of electrons as noble gases rather than having the same electron configuration.
Emphasize that ions from Group 1, Group 2, Group 6, and Group 7 elements achieve a noble gas electronic structure by losing or gaining electrons, resulting in the same arrangement of electrons, not the same total number.
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