Which of the following metals will melt at body temperature?
Gallium,Magnesium,Caesium,Aluminium

To determine which of the given metals will melt at body temperature (approximately 37 degrees Celsius), we will analyze the melting points of each metal listed: Gallium, Magnesium, Caesium, and Aluminium.

1. Identify the melting points of the metals:
- Gallium (Ga): The melting point is approximately 29.7 degrees Celsius.
- Magnesium (Mg): The melting point is approximately 650 degrees Celsius.
- Caesium (Cs): The melting point is approximately 28.9 degrees Celsius.
- Aluminium (Al): The melting point is approximately 660.3 degrees Celsius.

2. Compare the melting points with body temperature:
- Body temperature is around 37 degrees Celsius.
- Gallium melts at 29.7 degrees Celsius, which is below body temperature but close.
- Magnesium melts at 650 degrees Celsius, which is much higher than body temperature.
- Caesium melts at 28.9 degrees Celsius, which is also below body temperature but close.
- Aluminium melts at 660.3 degrees Celsius, which is much higher than body temperature.

3. Determine which metals melt at or below body temperature:
- Gallium and Caesium are the only metals that have melting points close to body temperature (29.7 °C and 28.9 °C respectively).
- Magnesium and Aluminium do not melt at body temperature since their melting points are significantly higher.

4. Conclusion:
- The metals that will melt at or near body temperature (37 degrees Celsius) are Gallium and Caesium.

Final Answer:
Gallium and Caesium are the metals that will melt at body temperature.

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