subblimes......
Nothing good...
excited electrons returning to the ground state.
The color become grey because silver chloride (AgCl) is slowly decomposed to silver and chlorine.
sodium catche light in air. Sodium is a metal that doesn't occur naturally. There are many such metals that are very unstable in air and will proceed to oxidize rapidly when exposed. Phosphorus even is highly unstable in air which is why they make matches out of the stuff. What the question is asking is 'there any naturally occurring mineral that proceeds to burn when exposed to air?' I have heard of such - there is a place in Baffin Island known as the smoking hills where a vein of some such mineral has become exposed. I do not know the name or composition of such but am curious to find out.
5890
Silver Halide Silver iodide
LSD may chemically break down and become inactive when exposed to light.
It is so small that when sodium is exposed to the sun light, the energy of sun light is enough to cause the ionization of sodium metal. Hence it is called a photo-sensitive metal.
Nothing good...
They turn black
It explodes. Only joking :) Nothing visible happens to it that we know of
excited electrons returning to the ground state.
It turns black or dark in colour when silver nitrate is exposed to sunlight.
B. The light will split to form a reflection
All I know is, they change their structure when exposed to light.
Sodium and Lithium react so rapidly with air and water, that they must be contained under oil. Sodium burns rapidly in air, releasing heat and light energy. If you explore around YouTube for videos of this reaction, some may explode. This is the light and heat energy being given off. Equation: 4Na + O2 --> 2Na2O
it will dilute into a pure h2o substance -- virtually, its unusable. Sorry dude :)