Oxygen

Oxygen was discovered by the Swedish pharmacist and chemist Carl-Wilhelm Scheele in 1771, and independently of him by the English clergyman and chemist Joseph Priestley in 1774. Scheele's Chemical Treatise on Air and Fire was delayed in publication until 1777, so Priestley has been credited with the discovery because he published first [7].

From the Greek words oxys, meaning acid, and genes, meaning forming. The name is a misnomer due, to the French chemist Antoine-Laurent Lavoisier who once believed that oxygen was integral to all acids [7].