Properties

CAS Number7440-50-8
PubChem CID23978
Atomic Radius১২৮
Atomic Volume৭.১
Atomic Weight৬৩.৫৪৬
Blockd
Boiling Point২,৫৬২
Bulk Modulus
CategoryTransition metals
Crystal StructureFace Centered Cubic
ColorCopper
Covalent Radius১৩২
Density৮.৯৬
Electrical Resistivity
Electron Configuration[Ar] 3d10 4s1
Electrons per shell2, 8, 18, 1
Electronegativity১.৯
Electrons29
Group11
Heat of Fusion১৩.১
Heat of Vaporization৩০০
Ionization Potential৭.৭২৬
Magnetic Ordering
Magnetic Susceptibility
Mass৬৩.৫৪৬
Mass Number29
Melting Point১,০৮৪.৬
Nameকপার
Neutrons35
Atomic Number64
Oxidation States1, 2, 3, 4
Period4
PhaseSolid
Poisson Ratio
Protons29
Shear Modulus
Specific Heat Capacity০.৩৮৫
SymbolCu
Thermal Conductivity৪.০১
Van der Waals radius
Young's Modulus
Abundance
Abundance in Earth's crust0.0068%
Abundance in Universe6×10-6%
Cu কপার 29 63.546 11 4 d 29 1083.0 2567.0 [Ar] 3d10 4s1 2 8 18 1 8.96 0.0068% Copper Cubic: Face centered 1.9 1.85 {"1":"745.5","2":"1957.9","3":"3555","4":"5536","5":"7700","6":"9900","7":"13400","8":"16000","9":"19200","10":"22400","11":"25600","12":"35600","13":"38700","14":"42000","15":"46700","16":"50200","17":"53700","18":"61100","19":"64702","20":"163700","21":"174100","22":"184900","23":"198800","24":"210500","25":"222700","26":"239100","27":"249660","28":"1067358","29":"1116105"} 746 118.4 138 +2,1 1.28 7.1 13.14 300.5 0.385 401.0 0 Solid, Diamagnetic, Conductor, TransitionMetal, Metal, Stable, Natural KOP-er Malleable, ductile, reddish-brown metal. Most often used as an electrical conductor. Also used in the manufacture of water pipes. Its alloys are used in jewelry and for coins. Pure copper occurs rarely in nature. Usually found in sulfides as in chalcopyrite (CuFeS2), coveline (CuS), chalcosine (Cu2S) or oxides like cuprite (Cu2O). sWvp_Z2kfYs Copper
Potassium's symbol K comes from 'kalium' the name of the element in Germany and Scandinavia.

Potassium metal was first isolated in 1807 by Sir Humphry Davy, who derived it from caustic potash by the use of electrolysis of the molten salt with the newly discovered voltaic pile.

Potassium was the first metal that was isolated by electrolysis. From the English word, potash - pot ashes; Latin kalium, Arab qali, alkali 29 From the Latin word "cuprum" meaning the island of "Cyprus"

Isotopes of Potassium

Standard Atomic Weight

63.546(3)

Stable Isotopes

63Cu 65Cu

Unstable Isotopes

52Cu 53Cu 54Cu 55Cu 56Cu 57Cu 58Cu 59Cu 60Cu 61Cu 62Cu 64Cu 66Cu 67Cu 68Cu 69Cu 70Cu 71Cu 72Cu 73Cu 74Cu 75Cu 76Cu 77Cu 78Cu 79Cu 80Cu

Potassium must be handled with great care with full skin and eye protection
People whose diets are low in potassium can suffer from hypokalemia
The greatest demand for potash has been in its use for fertilizers.

Potassium is an essential constituent for plant growth and is found in most soils.

Potassium nitrate is the main explosive ingredient in gunpowder.

Potassium hydroxide is used in the manufacture of soft soaps and as an electrolyte in alkaline batteries.