* Mercury (Hg): This is the most well-known example. It's a silvery-white liquid at room temperature.
* Francium (Fr): This element is extremely radioactive and has a very short half-life. It exists as a liquid at room temperature, but is so rare and unstable that it's not found in nature.
It's worth noting that gallium (Ga) is also a solid at room temperature, but it melts in your hand due to its low melting point (around 29.76 °C or 85.57 °F).
