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.
Physical properties: Pure silver iodide is a yellow solid with a density of 5.68 g/mL, melting point of 558 Â°C and boiling point of 1,506 Â°C. It generally exists with small amounts of silver metal as impurity, so is found as a greyish yellow solid.