Vlastnosti

CAS Number7440-50-8
PubChem CID23978
Atómový polomer128
Atómový objem7,1
Atómová hmotnosť63,546
Orbitáld
Teplota varu2 562
Bulk Modulus
KategóriaPrechodné prvky
Kryštálová sústavaTvárovo-centrovaný kockový
FarbaMedená
Kovalentný polomer132
Hustota8,96
Electrical Resistivity
Elektrónová konfigurácia[Ar] 3d10 4s1
Elektróny v obale2, 8, 18, 1
Elektronegativita1,9
Electrons29
Skupina11
Skupenské teplo topenia13,1
Skupenské teplo varu300
Ionizačný potenciál7,726
Magnetic Ordering
Magnetic Susceptibility
Hmota63,546
Mass Number29
Teplota topenia1 084,6
NázovMeď
Neutróny35
Protónové číslo64
Oxidačné stavy1, 2, 3, 4
Perióda4
SkupenstvoTuhé látky
Poisson Ratio
Protóny29
Shear Modulus
Tepelná kapacita0,385
ZnačkaCu
Tepelná vodivosť4,01
Van der Waals radius
Young's Modulus
Množstvo
Množstvo v zemskej kôre0.0068%
Množstvo vo vesmíre6×10-6%
Cu Meď 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)

Stabilné izotopy

63Cu 65Cu

Nestabilné izotopy

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.