Activators initiate, improve, maintain the luminescence of phosphors.,
Phosphorous is a non-metallic chemical element with the symbol P and the atomic number 15.
Phosphorus is one of the nutrients essential for life in all organisms. It is used in fundamental life processes such as storage and transfer of genetic information, cell metabolism, and in the energy systems of cells. In lakes, phosphorus is usually present in small amounts, but usually increases with the amount of human impact on the land surrounding the lake. Phosphorus is almost always a limiting nutrient to plant growth in a lake, meaning that plant growth increases at the same rate as phosphorus is added to the system. Phosphorus can enter a lake from the land surrounding the water body by way of sediments, lawn/garden fertilizer, by septic waste washing into the lake or by way of streams that carry and deposit pollutants the lake.
A phosphor become luminescent in some conditions (in fluorescent lights under electrical discharge); a phosphor is not the chemical element phosphorus.
Phosphors are chemical compounds.
Phosphors
Barium phosphate (BaHPO4) is used for: - component of flame retardants - component of phosphors
No. Phosphorus is a chemical element; phosphors are materials, not necessarily elements, that emit light slowly enough to be useful light sources in the dark, without the need for applied electric current or other external energy supplies. The light emitted may have been absorbed from the environment experienced by a phosphor before its light is emitted and stored in the phosphor in the form of a metastable excited state of an atom, or it may arise from slow chemical reaction among, or radioactive decay of, one or more constituents of the phosphor.
Because Europium is fairly difficult to obtain it has few practical uses. Europium is unique in the fact that it can absorb more neutrons per atom then any other element. Thus making Europium and its isotopes very valuable in control rods of nuclear reactors. Like many other transition metals Europium is used in producing certain alloys, including striker and lighter flints. It's also been used in the creation of infrared absorbing automotive glass. Europium's compound, Europium Oxide, is often used as a phosphor activator. Europium's other two roles are also involved with phosphors. Europium is used in the production of phosphors for the creation of small lasers. But perhaps what Europium is known best for is the production of the red phosphors that are found in all color television screens.
The most common way of making an object glow in the dark is to use chemicals called phosphors to produce light. But I'm not certan that is used in paint.
Compact Fluorescent lamps, Fireflies, Glowworms, some underground worms!!, and some phosphorescent paints, all contain phosphors.
fluorescent, LEDs
It is not chalk, it is phosphors.
fluorescent
A fluorescent bulb
fluorescent, LEDs
Although I would not recommend it, yes you can as most are non-toxic.If however you meant elemental Phosphorus instead of phosphors, NO, some form of Phosphorus are deadly poisons and white Phosphorus spontaneously ignites on contact with air!!!If you don't know the difference between phosphors and Phosphorus, that is the subject of a different question.
Activators initiate, improve, maintain the luminescence of phosphors.,
Ultraviolet Radiation.
Phosphors
Phosphors for fluorescent lights are one.
Examples are: ZnS, CdS, Y2O3, Y2SiO5, ZnSiO4 etc.