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Gallium is a metal with the atomic number 31 in the periodic table and the chemical symbol "Ga." It was discovered in 1875 by the French chemist Paul-Émile Lecoq de Boisbaudran. Gallium is notable for its melting point near room temperature (about 29.8 °C), which allows it to melt in the human hand. It has a high boiling point (approximately 2204 °C) and a wide liquid phase range, making it valuable for various technological applications. Gallium does not occur freely in nature; it is typically