Chemistry
Grade-9
Easy
Question
What is the correct chemical formula for magnesium iodide?
- MgI2
- Mg2I
- MgI
- Mg2I2
Hint:
In magnesium iodide two iodine atoms are present.
The correct answer is: MgI2
- In the chemical formula, metal is written first followed by non-metal.
- In magnesium iodide, magnesium has a +2 oxidation state, and iodine has a -1 oxidation state.
- A compound always tends to be neutral. Hence, two iodine atoms are present.
- The correct chemical formula for magnesium iodide is MgI2.
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