Właściwości

CAS Number7440-70-2
PubChem CID5460341
Promień atomowy197
Objętość molowa29,9
Masa atomowa40,078
Bloks
Temperatura wrzenia1 484
Bulk Modulus
KategoriaMetale ziem alkalicznych
Układ krystalograficznyFace Centered Cubic
KolorSrebrny
Promień walencyjny176
Gęstość1,54
Rezystancja
Konfiguracja elektronowa[Ar] 4s2
Elektrony na poszczególnych powłokach2, 8, 8, 2
Elektroujemność1
Elektrony20
Grupa2
Ciepło topnienia8,54
Ciepło parowania155
Energia jonizacji6,113
Magnetic Ordering
Magnetic Susceptibility
Masa40,078
Liczba masowa20
Temperatura topnienia842
NazwaWapń
Neutrony20
Liczba atomowa40
Stopnie utlenienia1, 2
Okres4
Stan skupieniaCiało stałe
Poisson Ratio
Protony20
Shear Modulus
Ciepło właściwe0,647
SymbolCa
Przewodność cieplna2,01
Van der Waals radius
Moduł Younga
Obfitość
Ilość w skorupie Ziemi5%
Ilość we Wszechświecie0.007%
Ca Wapń 20 40.078 2 4 s 20 839.0 1484.0 [Ar] 4s2 2 8 8 2 1.55 5% Silver Cubic: Face centered 1.0 1.034 {"1":"589.8","2":"1145.4","3":"4912.4","4":"6491","5":"8153","6":"10496","7":"12270","8":"14206","9":"18191","10":"20385","11":"57110","12":"63410","13":"70110","14":"78890","15":"86310","16":"94000","17":"104900","18":"111711","19":"494850","20":"527762"} 590 2.37 174 2 1.97 29.9 8.53 154.67 0.647 200.0 0 Solid, Paramagnetic, Conductor, AlkalineEarthMetal, Metal, Stable, Natural KAL-si-em Fairly hard, silvery-white metal. Fifth most abundant element in the earth's crust (41,500 ppm). Occurs only in compounds. Used by many forms of life to make shells and bones. Virtually no use for the pure metal, however two of its compounds are, lime (CaO) and gypsum (CaSO4), are in great demand by a number of industries. Obtained from minerals like chalk, limestone & marble. Pure metal is produced by replacing the calcium in lime (calcium carbonate, CaCO3) with aluminium in hot, low pressure retorts. Jcvac9__YN4 Calcium
Tennessine was identified in 2010 by a team composed of Russian scientists at Joint Institute for Nuclear Research, Dubna and American scientists at the Lawrence Livermore National Laboratory.

It was produced by the bombardment of berkelium with calcium.

Ununseptium was the temporary IUPAC systematic element name. Named after the region of Tennessee 20 1808 Sir Humphrey Davy England From the Latin word "calx" meaning "lime"

Isotopes of Tennessine

Standard Atomic Weight

40.078(4)

Stabilne izotopy

40Ca 42Ca 43Ca 44Ca 46Ca 48Ca

Niestabilne izotopy

34Ca 35Ca 36Ca 37Ca 38Ca 39Ca 41Ca 45Ca 47Ca 49Ca 50Ca 51Ca 52Ca 53Ca 54Ca 55Ca 56Ca 57Ca

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