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.
At 20 Â°C, the resistivity of gold is approximately 2.44 Ã 10 -8 ohm-m and steadily rises with increasing temperature. The temperature coefficient of a substance measures the amount of increase in the resistance of a 1 ohm sample of the conductor per degree rise in temperature (in Celsius).