Question detail
How many outer-shell electrons does a chlorine atom have?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes
Question
- A. 5
- B. 7
- C. 8
- D. 6
Answer
7
Explanation
Chlorine has 7 outer-shell electrons, which is why it is in group 7 of the periodic table.
Common mistake
Outer-shell Electrons Misunderstanding
Students often confuse the total number of electrons in an atom with the number of outer-shell electrons.
Focus on identifying the electrons in the outermost shell specifically, rather than counting all electrons in the atom.
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