خواص

CAS Number7440-70-2
PubChem CID5460341
شعاع اتمی۱۹۷
حجم اتمی۲۹٫۹
عدد جرمی۴۰٫۰۷۸
بلوکs
نقطه جوش۱٬۴۸۴
Bulk Modulus
دستهفلزات قلیایی خاکی
ساختار کریستالی مکعب چهره محور
رنگنقره ای
شعاع کووالانسی۱۷۶
چگالی۱٫۵۴
Electrical Resistivity
ساختار الکترونی[Ar] 4s2
الکترون های هر لایه2, 8, 8, 2
الکترونگاتیویته۱
Electrons20
گروه2
گرمای همجوشی۸٫۵۴
گرمای تبخیر۱۵۵
پتانسیل یونیزاسیون۶٫۱۱۳
Magnetic Ordering
Magnetic Susceptibility
جرم۴۰٫۰۷۸
Mass Number20
نقطه ذوب۸۴۲
نامکلسیم
نوترون ها20
عدد اتمی40
حالات اکسید شدن1, 2
تناوب4
جنسجامد
Poisson Ratio
پروتون ها20
Shear Modulus
ظرفیت گرمایی ویژه۰٫۶۴۷
نمادCa
رسانایی گرما۲٫۰۱
Van der Waals radius
Young's Modulus
فراوانی
فراوانی در پوسته زمین5%
فراوانی در جهان0.007%
Ca کلسیم 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)

ایزوتوپ های پایدار

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

ایزوتوپ های ناپایدار

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.