(a) Why Cesium and Gallium melt in our palm?

Monjur Alahi

(a) Why Cesium and Gallium melt in our palm?

(b) Why Magnesium ribbon starts floating in hot water?


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Salim Ahmed Kawsar

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(a) Some metals are more like liquids. A chip of gallium or caesium melts on our palm because the melting point of these metals is just below thirty degrees Celsius (86oF). They have very low melting point.

(b) Magnesium reacts with hot water and starts floating due to the bubbles of hydrogen gas sticking to its surface.

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