1 Type a value in the next cell to establish a pattern. 2  For example, if you want the series 1, 2, 3, 4, 5..., type 1 and 2 in the first two cells. 3  If you want the series 2, 4, 6, 8..., type 2 and 4. 4  Select the cells that contain the starting values. 5  Drag the fill handle across the range that you want to fill. For example, if you want the series 1, 2, 3, 4, 5..., type 1 and 2 in the first two cells. 2  If you want the series 2, 4, 6, 8..., type 2 and 4. 3  Select the cells that contain the starting values. 4  Drag the fill handle across the range that you want to fill.
Cobalt: historical information. Cobalt was discovered by Georg Brandt at 1735 in Sweden. Origin of name: from the German word kobald meaning goblin or evil spirit. Minerals containing cobalt were of value to the early civilisations of Egypt and Mesopotamia for colouring glass deep blue.
Chromium is a steel-gray, lustrous, hard metal that takes a high polish. Discovered in 1797 by the Frenchman Louis Nicolas Vauquelin. The principal ore is chromite, which is found in Zimbabwe, Russia, New Zealand, Turkey, Iran, Albania, Finland, Democratic Republic of Madagascar, and the Phillippines.