Kalsiy (Ca)

chemical element with symbol Ca and atomic number 20

Atomic Number	20
Atomic Weight	40.078
mass number	40

Group	2
Period	4
Block	s

Proton	20 p⁺
Neytron	20 n⁰
Elektron	20 e^-

Fizik Xossa

Atom Radiusi	180 pm 270 pm
Molyar hajm	29,9 cm³/mol
Kovalentlik Radiusi	171 pm 147 pm 133 pm 170 pm 176 pm
Metallic Radius	174 pm 197 pm
Ion radiuslar	100 pm 106 pm 112 pm 118 pm 123 pm 134 pm
Crystal Radius	114 pm 120 pm 126 pm 132 pm 137 pm 148 pm
Van der Waals radius	240 pm 231 pm 281 pm 231 pm 339,9 pm
density	1,54 g/cm³ 1 378 kg/m³

Chemical Property

energiya

proton affinity
electron affinity	0,02455 eV/particle
ionization energy	6,1131552 eV/particle 11,871718 eV/particle 50,91315 eV/particle 67,2732 eV/particle 84,338 eV/particle 108,78 eV/particle 127,2 eV/particle 147,24 eV/particle 188,535 eV/particle 211,2751 eV/particle 591,6 eV/particle 658,24 eV/particle 728,6 eV/particle 817,22 eV/particle 893,98 eV/particle 973,7 eV/particle 1 086,8 eV/particle 1 157,726 eV/particle 5 128,8576 eV/particle 5 469,8614 eV/particle

Solishtirma qaynash issiqligi	153,6 kJ/mol
solishtirma erish issiqligi	9,2 kJ/mol
standard enthalpy of formation	177,8 kJ/mol
Elektron

Ion asboblar	2, 8, 8, 2

valence electron	2 ⓘ

electron configuration	[Ar] 4s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²

Oksidlanish darajasi	1, 2
Elektrmanfiylik	6,113 eV/particle 0.1154119 1
Electrophilicity Index	0,7734001442996138 eV/particle
fundamental state of matter

phase of matter	Solid
gaseous state of matter
Boiling Point	1 757,15 K
Melting Point	1 115,15 K
critical pressure
critical temperature
triple point
appearance
Rang	Silver #808090 #3dff00 #3dff00
appearance
refractive index
thermodynamic material property
Thermal Conductivity
Issiqlikdan kengayish	0,0000223 1/K
molar heat capacity	25,929 J/(mol K)
Specific Heat Capacity	0,647 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
electrical conductivity	29 MS/m
electrical resistivity	0,00000003399999999999 Ω*m
superconductivity
Magnetizm
type	paramagnetic
magnetic susceptibility (Mass)	0,0000000138 m³/Kg
magnetic susceptibility (Molar)	0,0000000005531 m³/mol
magnetic susceptibility (Volume)	0,00002139
magnetic ordering
Kyuri nuqtasi
Néel temperature
Tuzilma
Crystal Structure	Face Centered Cubic (FCC)
Kristall panjara davri	5,58 Å
Lattice Angles	π/2, π/2, π/2
mechanical property
Qattiqlik	167 MPa 1,75 MPa
bulk modulus	17 GPa
shear modulus	7,4 GPa
Yung moduli	20 GPa
Poisson's ratio	0,31
Tovush tezligi	3 810 m/s
klassifikatsiya
Category	Alkaline earth metals, Alkaline earth metals
CAS Group	IIA
IUPAC Group	IIA
Glawe Number	16
Mendeleev Number	7
Pettifor Number	16
Geochemical Class	major
Goldschmidt classification	litophile

other

Gas Basicity
polarizability	160,8 ± 4 a₀
C6 Dispersion Coefficient	2 163 a₀ 2 230 a₀
allotrope
Neutron cross section	0,43
Neutron Mass Absorption	0,00037
Atom kvant sonlari	1S0
space group	225 (Fm_3m)

Isotopes of Calcium

Stable Isotopes	3
Unstable Isotopes	26
Natural Isotopes	6

³³Ca

mass number	33
neutron number	13
Nisbiy Atom Massa	33,033312 ± 0,000429 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin	5/2
nuclear quadrupole moment
time of discovery or invention
parity	+

decay mode	intensity
p (proton emission)

³⁴Ca

mass number	34
neutron number	14
Nisbiy Atom Massa	34,015985 ± 0,000322 Da
g-factor	0
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin	0
nuclear quadrupole moment	0
time of discovery or invention
parity	+

decay mode	intensity
2p (2-proton emission)

³⁵Ca

mass number	35
neutron number	15
Nisbiy Atom Massa	35,005572 ± 0,000215 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	25,7 ± 0,2 ms
spin	1/2
nuclear quadrupole moment	0
time of discovery or invention	1985
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	95.8%
2p (2-proton emission)	4.2%

³⁶Ca

mass number	36
neutron number	16
Nisbiy Atom Massa	35,993074388 ± 0,000042941 Da
g-factor	0
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	100,9 ± 1,3 ms
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1977
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	51.2%

³⁷Ca

mass number	37
neutron number	17
Nisbiy Atom Massa	36,985897849 ± 0,00000068 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	181 ± 0,9 ms
spin	3/2
nuclear quadrupole moment
time of discovery or invention	1964
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	76.8%

³⁸Ca

mass number	38
neutron number	18
Nisbiy Atom Massa	37,976319223 ± 0,000000208 Da
g-factor	0
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	443,7 ± 0,25 ms
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1966
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

³⁹Ca

mass number	39
neutron number	19
Nisbiy Atom Massa	38,970710811 ± 0,00000064 Da
g-factor	0,68093333333333 ± 0,00010666666666667
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	860,3 ± 0,8 ms
spin	3/2
nuclear quadrupole moment	0,038 ± 0,003
time of discovery or invention	1943
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁴⁰Ca

mass number	40
neutron number	20
Nisbiy Atom Massa	39,96259085 ± 0,000000022 Da
g-factor	0
natural abundance	96,941 ± 0,156
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1922
parity	+

decay mode	intensity
2β⁺ (double β⁺ decay)

⁴¹Ca

mass number	41
neutron number	21
Nisbiy Atom Massa	40,962277905 ± 0,000000147 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	99,4 ± 1,5 ky
spin	7/2
nuclear quadrupole moment	-0,0665 ± 0,0018
time of discovery or invention	1939
parity	-

decay mode	intensity
ϵ (electron capture)	100%

⁴²Ca

mass number	42
neutron number	22
Nisbiy Atom Massa	41,95861778 ± 0,000000159 Da
g-factor	0
natural abundance	0,647 ± 0,023
Radioaktivlik	stable isotope
Yarim yemirilish davri	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1934
parity	+

⁴³Ca

mass number	43
neutron number	23
Nisbiy Atom Massa	42,958766381 ± 0,000000244 Da
g-factor	-0,37638 ± 0,000017142857142857
natural abundance	0,135 ± 0,01
Radioaktivlik	stable isotope
Yarim yemirilish davri	Not Radioactive ☢️
spin	7/2
nuclear quadrupole moment	-0,0408 ± 0,0008
time of discovery or invention	1934
parity	-

⁴⁴Ca

mass number	44
neutron number	24
Nisbiy Atom Massa	43,955481489 ± 0,000000348 Da
g-factor	0
natural abundance	2,086 ± 0,11
Radioaktivlik	stable isotope
Yarim yemirilish davri	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1922
parity	+

⁴⁵Ca

mass number	45
neutron number	25
Nisbiy Atom Massa	44,95618627 ± 0,000000392 Da
g-factor	-0,37897142857143 ± 0,00037142857142857
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	162,61 ± 0,09 d
spin	7/2
nuclear quadrupole moment	0,038 ± 0,012
time of discovery or invention	1940
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁴⁶Ca

mass number	46
neutron number	26
Nisbiy Atom Massa	45,953687726 ± 0,000002398 Da
g-factor	0
natural abundance	0,004 ± 0,003
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1938
parity	+

decay mode	intensity
2β⁻ (double β⁻ decay)

⁴⁷Ca

mass number	47
neutron number	27
Nisbiy Atom Massa	46,954541134 ± 0,000002384 Da
g-factor	-0,40182857142857 ± 0,00031428571428571
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	4,536 ± 0,003 d
spin	7/2
nuclear quadrupole moment	0,084 ± 0,006
time of discovery or invention	1951
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁴⁸Ca

mass number	48
neutron number	28
Nisbiy Atom Massa	47,952522654 ± 0,000000018 Da
g-factor	0
natural abundance	0,187 ± 0,021
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	56 ± 10 Ey
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1938
parity	+

decay mode	intensity
2β⁻ (double β⁻ decay)
β⁻ (β⁻ decay)

⁴⁹Ca

mass number	49
neutron number	29
Nisbiy Atom Massa	48,955662625 ± 0,00000019 Da
g-factor	-0,91993333333333 ± 0,00053333333333333
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	8,718 ± 0,006 m
spin	3/2
nuclear quadrupole moment	-0,036 ± 0,003
time of discovery or invention	1950
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁵⁰Ca

mass number	50
neutron number	30
Nisbiy Atom Massa	49,957499215 ± 0,0000017 Da
g-factor	0
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	13,45 ± 0,05 s
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1964
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁵¹Ca

mass number	51
neutron number	31
Nisbiy Atom Massa	50,960995663 ± 0,00000056 Da
g-factor	-0,69973333333333 ± 0,00073333333333333
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	10 ± 0,8 s
spin	3/2
nuclear quadrupole moment	0,036 ± 0,012
time of discovery or invention	1980
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁵²Ca

mass number	52
neutron number	32
Nisbiy Atom Massa	51,963213646 ± 0,00000072 Da
g-factor	0
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	4,6 ± 0,3 s
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1985
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	2%

⁵³Ca

mass number	53
neutron number	33
Nisbiy Atom Massa	52,968451 ± 0,000047 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	461 ± 90 ms
spin	1/2
nuclear quadrupole moment	0
time of discovery or invention	1983
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	40%

⁵⁴Ca

mass number	54
neutron number	34
Nisbiy Atom Massa	53,972989 ± 0,000052 Da
g-factor	0
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	90 ± 6 ms
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1997
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁵⁵Ca

mass number	55
neutron number	35
Nisbiy Atom Massa	54,979978 ± 0,000172 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	22 ± 2 ms
spin	5/2
nuclear quadrupole moment
time of discovery or invention	1997
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁵⁶Ca

mass number	56
neutron number	36
Nisbiy Atom Massa	55,985496 ± 0,000268 Da
g-factor	0
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri	11 ± 2 ms
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1997
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁵⁷Ca

mass number	57
neutron number	37
Nisbiy Atom Massa	56,992958 ± 0,000429 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin	5/2
nuclear quadrupole moment
time of discovery or invention	2009
parity	-

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁵⁸Ca

mass number	58
neutron number	38
Nisbiy Atom Massa	57,998357 ± 0,000537 Da
g-factor	0
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin	0
nuclear quadrupole moment	0
time of discovery or invention	2009
parity	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁵⁹Ca

mass number	59
neutron number	39
Nisbiy Atom Massa	59,006237 ± 0,000644 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin	5/2
nuclear quadrupole moment
time of discovery or invention	2018
parity	-

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁶⁰Ca

mass number	60
neutron number	40
Nisbiy Atom Massa	60,011809 ± 0,000751 Da
g-factor	0
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin	0
nuclear quadrupole moment	0
time of discovery or invention	2018
parity	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁶¹Ca

mass number	61
neutron number	41
Nisbiy Atom Massa	61,020408 ± 0,000859 Da
g-factor
natural abundance
Radioaktivlik	☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin	1/2
nuclear quadrupole moment	0
time of discovery or invention
parity	-

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

tarix

discoverer or inventor	Sir Humphrey Davy
location of discovery	England
time of discovery or invention	1808
Etimologiya	Latin: calx, calcis (lime).
pronunciation	KAL-si-em (inglizcha)

source

Abundance
Abundance in Earth's crust	41 500 mg/kg
natural abundance (Okean)	412 mg/L
natural abundance (Inson tanasi)	1,4 %
natural abundance (Meteoroid)	1,1 %
natural abundance (Quyosh)	0,007 %
Abundance in Universe	0,007 %

Nuclear Screening Constants

1	s	0.527
2	p	3.9586
2	s	6.2236
3	p	11.3417
3	s	10.3985
4	s	15.602

Kalsiy on ChemicalAid

AGROVOC ID	c_1196
Art & Architecture Thesaurus ID	300264232
Australian Educational Vocabulary ID	scot/3064
BNCF Thesaurus ID	8953
BNF identifikatori	11976285h
Basque Vikidia ID	Kaltzio
Biblioteca Nacional de España ID	XX531346
Brockhaus Enzyklopädie online ID	calcium-20
CAS qayd raqami	7440-70-2
ChEBI ID	22984
ChemSpider ID	4573905
DSSTOX compound identifier	DTXCID40876145
DSSTox substance ID	DTXSID9050484
Den Store Danske ID	calcium
DrugBank ID	01373
ECHA Substance Infocard ID	100.028.344
Encyclopedia of China ID (Second Edition)	203125
Encyclopædia Britannica Online ID	science/calcium
Encyclopædia Britannica Online ID	science/calcium-ion
Encyclopædia Universalis ID	calcium
EuroVoc ID	5304
Freebase ID	/m/025tkqy
French Vikidia ID	Calcium
GND identifikatori	4069806-3
Golden ID	Calcium-JG5E
Gran Enciclopèdia Catalana ID	0087196
Gran Enciclopèdia Catalana ID	0013023
Great Russian Encyclopedia Online ID	2037432
HSDB ID	273
ICSC ID	1192
InChI	InChI=1S/Ca
InChIKey	OYPRJOBELJOOCE-UHFFFAOYSA-N
KBpedia ID	Calcium
KEGG ID	C00076
Krugosvet article	nauka_i_tehnika/himiya/KALTSI.html
LCCN identifikatori	sh85018768
Latvian National Encyclopedia Online ID	139701
MeSH descriptor ID	D002118
NALT ID	6421
NDF-RT ID	N0000146031
NDL identifikatori	00565069
NE.se ID	kalcium
NKCR AUT ID	ph116664
Namuwiki ID	칼슘
National Library of Israel J9U ID	987007293780405171
New York Times topic ID	subject/calcium
OmegaWiki Defined Meaning	471
OpenAlex ID	C2910173204
OpenAlex ID	C519063684
PSH ID	5752
PatientsLikeMe treatment ID	calcium
Probes And Drugs ID	PD051696
PubChem CID	5460341
Quora topic ID	Calcium
RxNorm ID	1895
Spanish Vikidia ID	Calcio
Store medisinske leksikon ID	kalsium
Store medisinske leksikon ID	kalsium_-_fysiologi
Store norske leksikon ID	kalsium
Treccani ID	calcio
UK Archival Thesaurus ID	f2/mt225/4347/702
UK Parliament thesaurus ID	8918
UMLS CUI	C0006675
UNESCO Thesaurus ID	concept4508
UNII	SY7Q814VUP
USGS Thesaurus ID	1418
WordNet 3.1 Synset ID	14656826-n
YSO ID	1852
ZVG number	8160
Zhihu topic ID	19668568

Kalsiy (Ca)

Fizik Xossa

Chemical Property

other

Isotopes of Calcium

33Ca

34Ca

35Ca

36Ca

37Ca

38Ca

39Ca

40Ca

41Ca

42Ca

43Ca

44Ca

45Ca

46Ca

47Ca

48Ca

49Ca

50Ca

51Ca

52Ca

53Ca

54Ca

55Ca

56Ca

57Ca

58Ca

59Ca

60Ca

61Ca

tarix

source

Nuclear Screening Constants

³³Ca

³⁴Ca

³⁵Ca

³⁶Ca

³⁷Ca

³⁸Ca

³⁹Ca

⁴⁰Ca

⁴¹Ca

⁴²Ca

⁴³Ca

⁴⁴Ca

⁴⁵Ca

⁴⁶Ca

⁴⁷Ca

⁴⁸Ca

⁴⁹Ca

⁵⁰Ca

⁵¹Ca

⁵²Ca

⁵³Ca

⁵⁴Ca

⁵⁵Ca

⁵⁶Ca

⁵⁷Ca

⁵⁸Ca

⁵⁹Ca

⁶⁰Ca

⁶¹Ca