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.
Sterling Silver melts at 1650 F, about 100 degrees less that pure silver because it is an alloy of 92.5% silver. You are not likely to use pure silver because it is too soft. Generally you melt your metal in a crucible, usually in an oven(not yout home oven, one made for casting), although a mega torch can do it.terling Silver melts at 1650 F, about 100 degrees less that pure silver because it is an alloy of 92.5% silver. You are not likely to use pure silver because it is too soft. Generally you melt your metal in a crucible, usually in an oven(not yout home oven, one made for casting), although a mega torch can do it.