Svojstva

CAS broj7440-70-2
PubChem CID5460341
Atomski radijus197
Atomski volumen29,9
Relativna atomska masa40,078
Bloks
Vrelište1.484
Modul stišljivosti
KategorijaZemnoalkalijski metali
Kristalna strukturaKubna plošno centrirana
BojaSrebrna
Kovalentni radijus176
Gustoća1,54
Električna otpornost
Elektronska konfiguracija[Ar] 4s2
Elektrona po ljusci2, 8, 8, 2
Elektronegativnost1
Elektroni20
Skupina2
Toplina taljenja8,54
Toplina isparavanja155
Potencijal ionizacije6,113
Magnetsko redanje
Magnetska osjetljivost
Masa40,078
Maseni broj20
Talište842
NazivKalcij
Neutroni20
Atomski broj40
Stanja oksidacije1, 2
Perioda4
Agregacijsko stanjeČvrsto
Poissonov omjer
Protoni20
Modul smicanja
Specifični toplinski kapacitet0,647
SimbolCa
Toplinska vodljivost2,01
Van der Waalsov radijus
Youngov modul
Obilnost
Zastupljenost u Zemljinoj kori5%
Zastupljenost u svemiru0.007%
Ca Kalcij 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. Imenovan po američkoj saveznoj državi Tennessee 20 1808 Sir Humphrey Davy England From the Latin word "calx" meaning "lime"

Isotopes of Tennessine

Standard Atomic Weight

40.078(4)

Stabilni izotopi

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

Nestabilni izotopi

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.