chemical element with symbol Ga and atomic number 31 / From Wikipedia, the free encyclopedia
Gallium (chemical symbol: Ga) is element 31 on the periodic table. It is a soft, gray metal that is rare on Earth. It can easily be melted just by holding it in your hand, as its melting point is very low 29.76 Celsius (85.58 Fahrenheit), however it also sticks to your hand a lot, unlike Mercury. Gallium is a semiconductor, and as the compound Gallium arsenide it is used in electronics and LEDs. Then, Gallium is also used in mirrors. Gallium can also be alloyed with Indium and Tin to create Galinstan. Gallium is similar to the elements Aluminium, Indium and Mercury.[7]