answers: technetium
context: can regarded as a portmanteau of "borax" and "carbon". Aluminium was named by Humphry Davy in the early 1800s. It is derived from the Greek word "alumen", meaning bitter salt, or the Latin "alum", the mineral. Gallium is derived from the Latin "Gallia", referring to France, the place of its discovery. Indium comes from the Latin word "indicum", meaning indigo dye, and refers to the element's prominent indigo spectroscopic line. Thallium, like indium, is named after the Greek word for the color of its spectroscopic line: "thallos", meaning a green twig or shoot. "Nihonium" is named after Japan ("Nihon" in </s> formation of Earth, they are extremely likely, to the point of certainty, to have already decayed, and if present in novae have been in quantities too small to have been noted. Technetium was the first purportedly non-naturally occurring element synthesized, in 1937, although trace amounts of technetium have since been found in nature (and also the element may have been discovered naturally in 1925). This pattern of artificial production and later natural discovery has been repeated with several other radioactive naturally occurring rare elements. List of the elements are available by name, atomic number, density, melting point, boiling point and </s> the development of synthetic organic chemistry. Silane itself, as well as trichlorosilane, were first synthesised by Friedrich Wöhler and Heinrich Buff in 1857 by reacting aluminium–silicon alloys with hydrochloric acid, and characterised as SiH and SiHCl by Charles Friedel and Albert Ladenburg in 1867. Disilane (SiH) followed in 1902, when it was first made by Henri Moissan and Samuel Smiles by the protonolysis of magnesium silicides. Further investigation had to wait until 1916 because of the great reactivity and thermal instability of the silanes; it was then that Alfred Stock began to study silicon hydrides in earnest with new greaseless
question: which is the first artificial produced element in the periodic table