Only two elements are liquid at room temperature – mercury is one – what is the other?
Chemical elements in East Asian languages Industrial Age. These new elements therefore required new characters, which were invented using the phono-semantic principle. Each character consists of two parts, one to signify the meaning and the other to hint at the sound: The "water" radical () is rarely used, since only two elements (bromine and mercury) are truly liquid at standard room temperature and pressure. Both of their characters are not based on the European pronunciation of the elements' names. Bromine (), the only liquid nonmetal at room temperature, is explained in the following section. Mercury (), now grouped with the heavy metals, was long classified as
Liquid metal Liquid metal Liquid metal consists of alloys with very low melting points which form a eutectic that is liquid at room temperature. The standard metal used to be mercury, but gallium-based alloys, which are lower both in their vapor pressure at room temperature and toxicity, are being used as a replacement in various applications. A few elemental metals are liquid at or near room temperature. The most well known is mercury(Hg), which is molten above −38.8 °C (234.3 K, −37.9 °F). Others include caesium(Cs), which has a melting point of 28.5 °C (83.3 °F), rubidium (Rb)(39 °C [102 °F]), francium