特性

CAS Number7440-70-2
PubChem CID5460341
原子半径197
モル体積29.9
原子量40.078
ブロックs
沸点1,484
Bulk Modulus
カテゴリアルカリ土類金属
結晶構造面心立方格子
銀色
共有結合半径176
密度1.54
Electrical Resistivity
電子配置[Ar] 4s2
電子殻2, 8, 8, 2
電気陰性度1
Electrons20
2
融解熱8.54
蒸発熱155
イオン化エネルギー6.113
Magnetic Ordering
Magnetic Susceptibility
質量40.078
Mass Number20
融点842
名称カルシウム
中性子20
原子番号40
酸化数1, 2
周期4
固体
Poisson Ratio
陽子20
Shear Modulus
熱容量0.647
記号Ca
熱伝導率2.01
Van der Waals radius
Young's Modulus
天然存在比
地殻中における存在比5%
宇宙空間における存在比0.007%
Ca カルシウム 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"

テネシンの同位体

Standard Atomic Weight

40.078(4)

安定同位体

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

不安定同位体

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.