The Bechamp reaction was first used to synthesize a molecule with one atom 
The Bechamp reaction was first used to synthesize a molecule with one atom of this element. Two methyl radicals are bound to this element in Agent Blue, also known as cacodylic acid. The extremophile GFAJ-1 was controversially thought to be able to incorporate this element instead of phosphorus when phosphorus starved, although that claim was later debunked. This element can be detected by reacting the sample of interest with nitric acid and (*) zinc. This element forms a binary compound with gallium that can be used as a semiconductor. Detected via the Marsh test, this element appears in the drugs Atoxyl and Salvarsan, syphilis treating drugs developed by Paul Ehrlich. For 10 points, name this poisonous element with chemical symbol As
The Bechamp reaction was first used to synthesize a molecule with one atom of this element.
arsenic