Gallium (beating heart) - Periodic Table of Videos
Growing Crystals And Making a Mirror with Gallium.
Gallium - Very Rare Chemical Element
Thallium - The MOST TOXIC METAL ON EARTH!
Gallium - Element Feature! Aluminum alloy with water = H2!
Gallium is a chemical element with symbol Ga and atomic number 31. It is in group 13 of the periodic table, and thus has similarities to the other metals of the group, aluminium, indium, and thallium. Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores and in bauxite. Elemental gallium is a soft, silvery blue metal at standard temperature and pressure, a brittle solid at low temperatures, and a liquid at temperatures greater than 29.76 °C (85.57 °F).