Question detail
Which ion is a typical product when magnesium behaves as a metal?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
The periodic table
Question
- A. Mg2+
- B. Mg2-
- C. Cl-
- D. O2-
Answer
Mg2+
Explanation
The correct option is Mg2+. Magnesium is a metal, so it forms a positive ion by losing electrons. Cl- and O2- are negative non-metal ions, while Mg2- has the wrong charge for magnesium metal.
Common mistake
Misunderstanding Metal Definition
Students often define metals as any elements that can conduct electricity, rather than specifically as elements that react to form positive ions.
Focus on the definition that metals are elements that react to form positive ions, and remember that conductivity is a separate property.
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