1741年以前,已经知道但当时 并不认为是元素的有16种物 质:金、银、铜、铅、锡、铁、汞、锑、铋、锌、铂、钴、硫、碳、磷、砷。1741～1787年,元素概念业已确立,又发现了氢、氧、氮、氯、碲、锰、钼、镍、钨9种新的元素。1787～1803年,发现了铬、铍、铀、钛、钇、钽、锆、铈、 Prior to 1741, there were 16 substances that were known but were not considered to be elements: gold, silver, copper, lead, tin, iron, mercury, antimony, bismuth, zinc, platinum, cobalt, sulfur, carbon, . From 1741 to 1787, the elemental concept was established and nine new elements of hydrogen, oxygen, nitrogen, chlorine, tellurium, manganese, molybdenum, nickel and tungsten were discovered. From 1787 to 1803, chromium, beryllium, uranium, titanium, yttrium, tantalum, zirconium, cerium,