Question detail
Determine the charge of the ion formed by a Group 6 non-metal when it gains two electrons.
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
Determine the charge of the ion formed by a Group 6 non-metal when it gains two electrons.
Answer
The charge of the ion formed by a Group 6 non-metal when it gains two electrons is -2.
Explanation
This answer is strong as it clearly explains the process of electron gain and the resulting charge. The question assesses the ability to apply knowledge of group numbers to predict ion charges.
Common mistake
Misunderstanding Ion Charges
Students often confuse the charges of ions from Group 1 and Group 2 with those from Group 6 and Group 7, leading to incorrect assignments of positive and negative charges.
Remember that Group 1 and Group 2 elements form positive ions by losing electrons, while Group 6 and Group 7 elements form negative ions by gaining electrons. Use the group number to determine the charge: Group 1 ions have a +1 charge, Group 2 ions have a +2 charge, Group 6 ions have a -2 charge, and Group 7 ions have a -1 charge.
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