“It sits below aluminium on the periodic table and looks a lot like it. If you had a hunk of each metal in front of you, you probably couldn’t tell them apart. Except that gallium has one unusual property: it melts at temperatures just above room temperature. It will even soften in the palm of your hand. So it’s sort of a classic nerdy science prank to make a spoon out of gallium and serve it to somebody with coffee or tea – then watch them recoil as the Earl Grey “eats” their utensil.”
