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.
A soft yellow element that resists corrosion and is the most malleable and ductile metal. A good thermal and electrical conductor, gold is generally alloyed to increase its strength. Atomic number 79; atomic weight 196.967; melting point 1,064.2Â°C; boiling point 2,856Â°C; specific gravity 19.3; valence 1, 3.