特性

CAS Number7440-50-8
PubChem CID23978
原子半径128
モル体積7.1
原子量63.546
ブロックd
沸点2,562
Bulk Modulus
カテゴリ遷移元素
結晶構造面心立方格子
赤銅色
共有結合半径132
密度8.96
Electrical Resistivity
電子配置[Ar] 3d10 4s1
電子殻2, 8, 18, 1
電気陰性度1.9
Electrons29
11
融解熱13.1
蒸発熱300
イオン化エネルギー7.726
Magnetic Ordering
Magnetic Susceptibility
質量63.546
Mass Number29
融点1,084.6
名称
中性子35
原子番号64
酸化数1, 2, 3, 4
周期4
固体
Poisson Ratio
陽子29
Shear Modulus
熱容量0.385
記号Cu
熱伝導率4.01
Van der Waals radius
Young's Modulus
天然存在比
地殻中における存在比0.0068%
宇宙空間における存在比6×10-6%
Cu 銅 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"

カリウムの同位体

Standard Atomic Weight

63.546(3)

安定同位体

63Cu 65Cu

不安定同位体

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.