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.
Cobalt is a chemical element with symbol Co and atomic number 27. Like nickel, cobalt in the Earth's crust is found only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal.obalt is the active center of coenzymes called cobalamins, the most common example of which is vitamin B12. As such it is an essential trace dietary mineral for all animals. Cobalt in inorganic form is also an active nutrient for bacteria, algae and fungi.