Given this experimental data, Rutherford naturally considered a planetary-model atom, the Rutherford model of 1911 â electrons orbiting a solar nucleus â however, said planetary-model atom has a technical difficulty.
1 Goldâs melting point is at about 1,943 degrees Fahrenheit, which means you will need temperatures that hot to melt it. 2  Thus, it's very important that you don't just choose any container. 3  In addition to a crucible, you will need a pair of tongs to move the crucible and hold it.
Once the chocolate has fully melted and reached a temperature of over 105Â°F (41Â°C), remove it from the heat. At this temperature, all the crystals, loose or stable, should be melted. Add a piece of unmelted chocolate to provide the seed crystals. This piece can be as big as 2 ounces (if you're melting a sizeable amount of chocolate) or can be chopped up into a few smaller pieces. Stir until the chocolate's temperature enters the tempering range, 88-90Â°F (31-32Â°C).