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.
Problem #3: A pure gold ring and pure silver ring have a total mass of 17.0 g. The two rings are heated to 65.4 Â°C and dropped into 12.4 mL of water at 22.3 Â°C. When equilibrium is reached, the temperature of the water is 24.7 Â°C.