The symbol of magnesium is ___________.

Explanation

To answer the question "The symbol of magnesium is ___________," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Element**: We need to find the chemical symbol for the element magnesium.

2. **Recall the Symbol**: The chemical symbol for magnesium is commonly known and can be found in the periodic table of elements.

3. **Write the Symbol**: The symbol for magnesium is written as "Mg".

4. **Confirm the Information**: Magnesium is located in group 2 of the periodic table, and its atomic number is 12.

5. **Conclusion**: Therefore, the complete answer to the question is: The symbol of magnesium is Mg.

### Final Answer:
The symbol of magnesium is **Mg**.

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