Question detail
What is the significance of halogens having seven electrons in their outer shell?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
The periodic table
Question
What is the significance of halogens having seven electrons in their outer shell?
Answer
Halogens have seven electrons in their outer shell, which makes them highly reactive as they need one more electron to achieve a stable octet configuration. This characteristic leads to their tendency to form bonds with other elements, particularly metals and non-metals.
Explanation
This answer is strong because it directly addresses the question about the significance of the outer shell electron configuration of halogens. It tests the understanding of chemical reactivity based on electron arrangement.
Common mistake
Misunderstanding Halogen Electron Configuration
Students often state that halogens have eight electrons in their outer shell instead of seven.
Remember that halogens have seven electrons in their outer shell, which is why they are reactive and tend to gain one electron to achieve a full outer shell.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.