both are named after the roman god of Mercury which is known for being fast and constantly moving, so when astronomers named the planet mercury they chose that name because it is the fastest moving planet in the sky, for liquid mercury, the liquid metal moves and flows very easily at room temperature, almost like it is quick
instead it is just accidental stuff caused by ancient astronomers and alchemers
they are not named after each other
This might sound like a really stupid question, but why is liquid mercury nammed after murcury the planet
ok I can't terraform this +1