CAS Number7440-09-7
PubChem CID5462222
Atomic Radius227
Atomic Volume45.46
Atomic Weight39.098
Boiling Point759
Bulk Modulus
CategoryAlkali metals
Crystal StructureBody Centered Cubic
Covalent Radius203
Electrical Resistivity
Electron Configuration[Ar] 4s1
Electrons per shell2, 8, 8, 1
Heat of Fusion2.33
Heat of Vaporization76.9
Ionization Potential4.341
Magnetic Ordering
Magnetic Susceptibility
Mass Number19
Melting Point63.38
Atomic Number39
Oxidation States-1, 1
Poisson Ratio
Shear Modulus
Specific Heat Capacity0.757
Thermal Conductivity1.024
Van der Waals radius
Young's Modulus
Abundance in Earth's crust1.5%
Abundance in Universe0.0003%
K Potassium 19 39.0983 1 4 s 19 63.25 760.0 [Ar] 4s1 2 8 8 1 0.86 1.5% Silver Cubic: Body centered 0.8 0.734 {"1":"418.8","2":"3052","3":"4420","4":"5877","5":"7975","6":"9590","7":"11343","8":"14944","9":"16963.7","10":"48610","11":"54490","12":"60730","13":"68950","14":"75900","15":"83080","16":"93400","17":"99710","18":"444880","19":"476063"} 419 48.4 196 1 2.35 45.3 2.33 76.9 0.757 102.5 0 Solid, Conductor, AlkaliMetal, Metal, Stable, Natural pe-TASS-i-em Soft, waxy, silver-white metal. Eighth most abundant element in the earth's crust (20,900 ppm). Occurs only in compounds. Used as potash in making glass & soap. Also as saltpeter, potassium nitrate (KNO3) to make explosives and to color fireworks in mauve. Formerly called kalium (K). Vital to function of nerve and muscle tissures. Found in minerals like carnallite [(KMgCl3).6H2O] & sylvite (potassium chloride, KCL). Pure metal is produced by the reaction of hot potassium chloride and sodium vapors in a special retort. pPdevJTGAYY Potassium
Ununhexium (Uuh) was the temporary IUPAC systematic element name.

Livermorium was identified in 2000 by a team composed of Russian scientists at Joint Institute for Nuclear Research, Dubna and American scientists at the Lawrence Livermore National Laboratory led by Yuri Oganessian and Ken Moody. Named after the Lawrence Livermore National Laboratory, within the city of Livermore, California 19 1807 Sir Humphrey Davy England From the English word "potash" (pot ashes) and the Arabic word "qali" meaning alkali (the origin of the symbol K comes from the Latin word "kalium")

Isotopes of Livermorium

Standard Atomic Weight


Stable Isotopes

39K 40K 41K

Unstable Isotopes

32K 33K 34K 35K 36K 37K 38K 42K 43K 44K 45K 46K 47K 48K 49K 50K 51K 52K 53K 54K 55K

Livermorium is harmful due to its radioactivity
Livermorium is historically known as eka-polonium
Livermorium is used for scientific research purposes only.