Here's why:

* Melting point: Gallium has a melting point of 29.76 °C (85.57 °F), which is slightly above room temperature.

* Liquid range: While it melts at a low temperature, gallium remains liquid over a relatively wide temperature range, making it a convenient liquid metal for various applications.

However, it's worth noting that:

* Solid at colder temperatures: If you cool gallium down below its melting point, it will solidify into a solid metal.

* Not technically a "true" liquid metal: Technically, gallium is a low-melting-point metal rather than a "true" liquid metal. This is because it forms a solid metallic lattice, even though it melts at a low temperature.

Despite this technicality, gallium is often referred to as a liquid metal due to its liquid state at room temperature and its unique properties, which make it suitable for various applications like thermometers, semiconductor devices, and even futuristic alloys.