Властивості

CAS Number7440-70-2
PubChem CID5460341
Радіус атома197
Молярний об'єм29,9
Атомна маса40,078
Блокs
Температура кипіння1 484
Bulk Modulus
КатегоріяЛужноземельні метали
Кристалічна СтруктураГранецентрована кубічна
КолірСрібний
Ковалентний радіус176
Густина1,54
Electrical Resistivity
Електронна конфігурація[Ar] 4s2
Електронні оболонки2, 8, 8, 2
Електронегативність1
Electrons20
Група2
Теплота плавлення8,54
Теплота випаровування155
іонізаційний потенціал6,113
Magnetic Ordering
Magnetic Susceptibility
Маса ізотопу40,078
Mass Number20
Температура плавлення842
НазваКальцій
Нейтрони20
Атомний номер40
Ступені окиснення1, 2
Період4
ФазаТверде тіло
Poisson Ratio
Протони20
Shear Modulus
Питома теплоїмність0,647
СимволCa
Теплопровідність2,01
Van der Waals radius
Young's Modulus
Достаток
Достаток в земній корі5%
Достаток в Всесвіті0.007%
Ca Кальцій 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)

Стабільні ізотопи

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

Нестабільні ізотопи

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.