A metal, which melts on the palm

Options

A. potassium
B. sodium
C. gallium
D. zinc

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a metal that melts when placed on the palm of your hand. This implies that the metal must have a low melting point, lower than the temperature of the human body (approximately 37 degrees Celsius).

2. **Identifying the Metal**: The metal that is known to melt at a relatively low temperature is gallium. Gallium has a melting point of about 29.76 degrees Celsius, which is just below body temperature.

3. **Characteristics of Gallium**: Gallium is a white silvery metal that is solid at room temperature. However, when it is held in the hand, it absorbs heat and melts.

4. **Conclusion**: Therefore, the metal that melts on the palm is gallium, which is represented by the symbol "Ga" and belongs to group 13 of the periodic table.

5. **Final Answer**: The metal that melts on the palm is gallium (Ga).

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