Silvery white
if sodium is in a compound, it will not be in natural state. natural state implies that it is a pure element. ie not a compound
The flame color of sodium nitrate solution is a bright yellow color. When the solution is heated, the sodium ions emit this characteristic yellow color when they are excited and then return to their ground state.
the color of aluminumm in its adonized state is a silvery metalic color that is not much different from that of stainless steel.
Oxygen is a colorless gas in its natural state.
silver
the colour of chalk(calcium carbonate) in its natural state is white.
It is a redish brown color.
A fresh surface of uranium is similar to the surface of a steel.
The color of cadmium is a metallic bluish-white color
The yellow color of the flame is due only to sodium.
When sodium ions are heated, electrons move from the ground state to the excited state, and because they are unstable in the excited state, they immediately return to lower energy levels in the ground state. As they do this, energy is released in the form of light. In the case of sodium, it produces orange light.
Sodium compounds like sodium chloride and sodium nitrate contain sodium ions that emit yellow light when heated. When they are placed in a flame, the energy from the heat excites the electrons in the sodium ions, causing them to jump to a higher energy level before returning to their ground state and emitting yellow light. This is why they all impart the same color flame.