Potassium

Potassium


 * The element name

Potassium


 * The element symbol




 * Group number and period on the periodic table

Group number:1 Period number:4


 * Name of the person and year it was discovered

Sir Humphry Davey, in 1807

Solid
 * State of the element at room temperature (solid, liquid or gas)

Potassium is a silvery white color, that turns grey almost imedaitley when it's exposed to air.
 * The colour of the element
 * The atomic number and mass

Atomic number:19 Atomic weight:39.0983 19
 * Picture(s) of the element
 * Number of protons, neutrons and electrons


 * Boiling and melting points (in degrees Celsius)

759 degrees celisus Potassium is metal!
 * Metal/Metalloid/Non-metal


 * 5 Important uses/interesting facts and any other information you think will be interesting and/or useful to others (including common chemical compounds)

-  -  -  - Bananas are a great source of potassium. - Potassium can be found inside of, glass, soap, gunpowder, salt, and many other objects.
 * 1) Pure potassium is a lightweight, silvery metal that is soft enough to cut with a knife.
 * 1) Potassium compounds emit a lilac or violet flame color when burned.
 * 1) Pure potassium usually is keept under oil or kerosene because it oxidizes so readily in air and reacts in water to evolve hydrogen, which may be ignited from the heat of the reaction.