Properties

CAS Number7440-50-8
PubChem CID23978
Atomic Radius128
Atomic Volume7.1
परमाणु भार63.546
ब्लॉकd
क्वथनांक2,562
Bulk Modulus
श्रेणीसंक्रमण धातु
Crystal StructureFace Centered Cubic
रंगताम्र
संयोजी त्रिज्या132
घनत्व8.96
Electrical Resistivity
इलेक्ट्रॉन कॉन्फिगरेशन[Ar] 3d10 4s1
इलेक्ट्रॉन प्रति शेल2, 8, 18, 1
इलेक्ट्रोनेगेटिविटी1.9
Electrons29
समूह11
विलय ऊष्मा13.1
वाष्पीकरण ऊष्मा300
आयनीकरण ऊर्जाएं7.726
Magnetic Ordering
Magnetic Susceptibility
भार63.546
Mass Number29
गलनांक1,084.6
नामताम्र
न्यूट्रॉन35
परमाणु संख्या64
ऑक्सीकरण स्थितियां1, 2, 3, 4
आवर्त4
अवस्थाठोस
Poisson Ratio
प्रोटॉन29
Shear Modulus
विशिष्ट ऊष्मा क्षमता0.385
चिह्नCu
तापीय चालकता4.01
Van der Waals radius
Young's Modulus
प्राकृतिक प्रचुरता
Abundance in Earth's crust0.0068%
Abundance in Universe6×10-6%
Cu ताम्र 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.