Свойства

CAS Number7440-70-2
PubChem CID5460341
Атомный радиус197
Атомный объем29,9
Атомный вес40,078
Блокs
Температура кипения1 484
Bulk Modulus
КатегорияЩелочно-земельные металлы
Кристаллическая структураГранецентрированной куб
ЦветСеребряный
Ковалентный радиус176
Плотность1,54
Electrical Resistivity
Электронная конфигурация[Ar] 4s2
Электронов на оболочку2, 8, 8, 2
Электроотрицательность1
Electrons20
Группа2
Теплота плавления8,54
Теплота парообразования155
Ионизационный потенциал6,113
Magnetic Ordering
Magnetic Susceptibility
Масса40,078
Mass Number20
Температура плавления842
ИмяКальций
Нейтроны20
Атомный номер40
Состояния окисления1, 2
Период4
ФазаТвердое тело
Poisson Ratio
Протоны20
Shear Modulus
Удельная теплоемкость0,647
СимволCa
Теплопроводность2,01
Van der Waals radius
Young's Modulus
Избыток
Избыток на Земле5%
Избыток во Вселенной0.007%
Ca Кальций 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"

Изотопы теннессина

Standard Atomic Weight

40.078(4)

Стабильные изотопы

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

Нестабильные изотопы

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

Теннессин вреден из-за его радиоактивности
Tennessine is historically known as eka-astatine
Tennessine is used for scientific research purposes only.