In 1913 Niels Bohr proposed a new model of the atom that included quantized electron orbits: electrons still orbit the nucleus much as planets orbit around the sun, but they are only permitted to inhabit certain orbits, not to orbit at any distance.
About reports the melting point of gold is 1,064.43 degrees Celsius. The melting point of a solid is the temperature at which it becomes a liquid. Gold's boiling point is 2,807 degrees Celsius.
Wood's metal has a slightly higher melting point (near 160F/70C) and is less expensive, but it contains lead. Aluminum melts at about 1221 degrees Fahrenheit, which is a heck of a lot hotter than MY oven goes. My guess is you need special equipment both to melt metals and to handle them afterward. I wouldn't try it at home.