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.
More or less of other metals alloyed with your gold such as silver or copper may raise or lower the melting point a bit. 14 K Gold, varies because there are many 14 K gold alloys, but a typical melting temperature for 14 K is about 1650 F. A fairly powerful torch, such as an oxy-acetylene unit will be required.