Kalsium (Ca)

chemical element with symbol Ca and atomic number 20

Atomic Number	20
Atomic Weight	40.078
Nombor jisim	40

Group	2
Period	4
Block	s

proton	20 p⁺
neutron	20 n⁰
Elektron	20 e^-

Sifat Fizikal

Jejari Atom	180 pm 270 pm
molar volume	29.9 cm³/mol
Jejari kovalen	171 pm 147 pm 133 pm 170 pm 176 pm
Metallic Radius	174 pm 197 pm
ionic radius	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
Jejari van der Waals	240 pm 231 pm 281 pm 231 pm 339.9 pm
ketumpatan	1.54 g/cm³ 1,378 kg/m³

Sifat Kimia

tenaga

proton affinity
Pertalian elektron	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

Entalpi pengewapan	153.6 kJ/mol
entalpi pelakuran	9.2 kJ/mol
standard enthalpy of formation	177.8 kJ/mol
Elektron

Petala elektron	2, 8, 8, 2

Elektron valens	2 ⓘ

tatarajah elektron	[Ar] 4s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²

Keadaan pengoksidaan	1, 2
Keelektronegatifan	6.113 eV/particle 0.1154119 1
Electrophilicity Index	0.7734001442996138 eV/particle
keadaan jirim asas

fasa jirim	Solid
gaseous state of matter
Boiling Point	1,757.15 K
Melting Point	1,115.15 K
critical pressure
critical temperature
triple point
rupa
warna	Silver #808090 #3dff00 #3dff00
rupa
indeks biasan
sifat bahan
Thermal Conductivity
Pengembangan terma	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
Kekonduksian elektrik	29 MS/m
Kerintangan dan kekonduksian elektrik	0.00000003399999999999 Ω*m
Kesuperkonduksian
kemagnetan
type	paramagnetic
magnetic susceptibility (Mass)	0.0000000138 m³/Kg
magnetic susceptibility (Molar)	0.0000000005531 m³/mol
magnetic susceptibility (Volume)	0.00002139
magnetic ordering
Suhu Curie
Néel temperature
struktur
Crystal Structure	Face Centered Cubic (FCC)
lattice constant	5.58 Å
Lattice Angles	π/2, π/2, π/2
mechanical property
hardness	167 MPa 1.75 MPa
Modulus pukal	17 GPa
shear modulus	7.4 GPa
Young's modulus	20 GPa
Nisbah Poisson	0.31
Kelajuan bunyi	3,810 m/s
pengelasan
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
Nombor kuantum	1S0
space group	225 (Fm_3m)

Isotopes of Calcium

Stable Isotopes	3
Unstable Isotopes	26
Natural Isotopes	6

³³Ca

Nombor jisim	33
nombor neutron	13
Jisim Atom Relatif	33.033312 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	5/2
nuclear quadrupole moment
tarikh penemuan
parity	+

decay mode	Keamatan (fizik)
p (proton emission)

³⁴Ca

Nombor jisim	34
nombor neutron	14
Jisim Atom Relatif	34.015985 ± 0.000322 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	0
nuclear quadrupole moment	0
tarikh penemuan
parity	+

decay mode	Keamatan (fizik)
2p (2-proton emission)

³⁵Ca

Nombor jisim	35
nombor neutron	15
Jisim Atom Relatif	35.005572 ± 0.000215 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	25.7 ± 0.2 ms
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan	1985
parity	+

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

³⁶Ca

Nombor jisim	36
nombor neutron	16
Jisim Atom Relatif	35.993074388 ± 0.000042941 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	100.9 ± 1.3 ms
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1977
parity	+

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

³⁷Ca

Nombor jisim	37
nombor neutron	17
Jisim Atom Relatif	36.985897849 ± 0.00000068 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	181 ± 0.9 ms
Spin	3/2
nuclear quadrupole moment
tarikh penemuan	1964
parity	+

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

³⁸Ca

Nombor jisim	38
nombor neutron	18
Jisim Atom Relatif	37.976319223 ± 0.000000208 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	443.7 ± 0.25 ms
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1966
parity	+

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

³⁹Ca

Nombor jisim	39
nombor neutron	19
Jisim Atom Relatif	38.970710811 ± 0.00000064 Da
g-factor	0.68093333333333 ± 0.00010666666666667
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	860.3 ± 0.8 ms
Spin	3/2
nuclear quadrupole moment	0.038 ± 0.003
tarikh penemuan	1943
parity	+

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

⁴⁰Ca

Nombor jisim	40
nombor neutron	20
Jisim Atom Relatif	39.96259085 ± 0.000000022 Da
g-factor	0
natural abundance	96.941 ± 0.156
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1922
parity	+

decay mode	Keamatan (fizik)
2β⁺ (double β⁺ decay)

⁴¹Ca

Nombor jisim	41
nombor neutron	21
Jisim Atom Relatif	40.962277905 ± 0.000000147 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	99.4 ± 1.5 ky
Spin	7/2
nuclear quadrupole moment	-0.0665 ± 0.0018
tarikh penemuan	1939
parity	-

decay mode	Keamatan (fizik)
ϵ (electron capture)	100%

⁴²Ca

Nombor jisim	42
nombor neutron	22
Jisim Atom Relatif	41.95861778 ± 0.000000159 Da
g-factor	0
natural abundance	0.647 ± 0.023
Reputan radioaktif	Isotop stabil
setengah hayat	Not Radioactive ☢️
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1934
parity	+

⁴³Ca

Nombor jisim	43
nombor neutron	23
Jisim Atom Relatif	42.958766381 ± 0.000000244 Da
g-factor	-0.37638 ± 0.000017142857142857
natural abundance	0.135 ± 0.01
Reputan radioaktif	Isotop stabil
setengah hayat	Not Radioactive ☢️
Spin	7/2
nuclear quadrupole moment	-0.0408 ± 0.0008
tarikh penemuan	1934
parity	-

⁴⁴Ca

Nombor jisim	44
nombor neutron	24
Jisim Atom Relatif	43.955481489 ± 0.000000348 Da
g-factor	0
natural abundance	2.086 ± 0.11
Reputan radioaktif	Isotop stabil
setengah hayat	Not Radioactive ☢️
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1922
parity	+

⁴⁵Ca

Nombor jisim	45
nombor neutron	25
Jisim Atom Relatif	44.95618627 ± 0.000000392 Da
g-factor	-0.37897142857143 ± 0.00037142857142857
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	162.61 ± 0.09 d
Spin	7/2
nuclear quadrupole moment	0.038 ± 0.012
tarikh penemuan	1940
parity	-

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

⁴⁶Ca

Nombor jisim	46
nombor neutron	26
Jisim Atom Relatif	45.953687726 ± 0.000002398 Da
g-factor	0
natural abundance	0.004 ± 0.003
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1938
parity	+

decay mode	Keamatan (fizik)
2β⁻ (double β⁻ decay)

⁴⁷Ca

Nombor jisim	47
nombor neutron	27
Jisim Atom Relatif	46.954541134 ± 0.000002384 Da
g-factor	-0.40182857142857 ± 0.00031428571428571
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	4.536 ± 0.003 d
Spin	7/2
nuclear quadrupole moment	0.084 ± 0.006
tarikh penemuan	1951
parity	-

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

⁴⁸Ca

Nombor jisim	48
nombor neutron	28
Jisim Atom Relatif	47.952522654 ± 0.000000018 Da
g-factor	0
natural abundance	0.187 ± 0.021
Reputan radioaktif	☢️ radioactive element
setengah hayat	56 ± 10 Ey
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1938
parity	+

decay mode	Keamatan (fizik)
2β⁻ (double β⁻ decay)
β⁻ (β⁻ decay)

⁴⁹Ca

Nombor jisim	49
nombor neutron	29
Jisim Atom Relatif	48.955662625 ± 0.00000019 Da
g-factor	-0.91993333333333 ± 0.00053333333333333
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	8.718 ± 0.006 m
Spin	3/2
nuclear quadrupole moment	-0.036 ± 0.003
tarikh penemuan	1950
parity	-

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

⁵⁰Ca

Nombor jisim	50
nombor neutron	30
Jisim Atom Relatif	49.957499215 ± 0.0000017 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	13.45 ± 0.05 s
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1964
parity	+

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

⁵¹Ca

Nombor jisim	51
nombor neutron	31
Jisim Atom Relatif	50.960995663 ± 0.00000056 Da
g-factor	-0.69973333333333 ± 0.00073333333333333
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	10 ± 0.8 s
Spin	3/2
nuclear quadrupole moment	0.036 ± 0.012
tarikh penemuan	1980
parity	-

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

⁵²Ca

Nombor jisim	52
nombor neutron	32
Jisim Atom Relatif	51.963213646 ± 0.00000072 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	4.6 ± 0.3 s
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1985
parity	+

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

⁵³Ca

Nombor jisim	53
nombor neutron	33
Jisim Atom Relatif	52.968451 ± 0.000047 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	461 ± 90 ms
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan	1983
parity	-

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

⁵⁴Ca

Nombor jisim	54
nombor neutron	34
Jisim Atom Relatif	53.972989 ± 0.000052 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	90 ± 6 ms
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1997
parity	+

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

⁵⁵Ca

Nombor jisim	55
nombor neutron	35
Jisim Atom Relatif	54.979978 ± 0.000172 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	22 ± 2 ms
Spin	5/2
nuclear quadrupole moment
tarikh penemuan	1997
parity	-

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

⁵⁶Ca

Nombor jisim	56
nombor neutron	36
Jisim Atom Relatif	55.985496 ± 0.000268 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	11 ± 2 ms
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1997
parity	+

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

⁵⁷Ca

Nombor jisim	57
nombor neutron	37
Jisim Atom Relatif	56.992958 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	5/2
nuclear quadrupole moment
tarikh penemuan	2009
parity	-

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

⁵⁸Ca

Nombor jisim	58
nombor neutron	38
Jisim Atom Relatif	57.998357 ± 0.000537 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	2009
parity	+

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

⁵⁹Ca

Nombor jisim	59
nombor neutron	39
Jisim Atom Relatif	59.006237 ± 0.000644 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	5/2
nuclear quadrupole moment
tarikh penemuan	2018
parity	-

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

⁶⁰Ca

Nombor jisim	60
nombor neutron	40
Jisim Atom Relatif	60.011809 ± 0.000751 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	2018
parity	+

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

⁶¹Ca

Nombor jisim	61
nombor neutron	41
Jisim Atom Relatif	61.020408 ± 0.000859 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan
parity	-

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

sejarah

penemu atau pereka	Sir Humphrey Davy
tempat penemuan	England
tarikh penemuan	1808
Etimologi	Latin: calx, calcis (lime).
sebutan	KAL-si-em (Inggeris)

sumber

Abundance
Abundance in Earth's crust	41,500 mg/kg
natural abundance (lautan)	412 mg/L
natural abundance (Tubuh manusia)	1.4 %
natural abundance (Meteoroid)	1.1 %
natural abundance (Matahari)	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

Kalsium on ChemicalAid

Basque Vikidia ID	Kaltzio
ChEBI ID	22984
ChemSpider ID	4573905
DSSTOX compound identifier	DTXCID40876145
DrugBank ID	01373
ECHA Substance Infocard ID	100.028.344
Encyclopedia of China ID (Second Edition)	203125
Golden ID	Calcium-JG5E
HSDB ID	273
ICSC ID	1192
ID AGROVOC	c_1196
ID Biblioteca Nacional de España	XX531346
ID BnF	11976285h
ID Den Store Danske	calcium
ID Encyclopædia Universalis	calcium
ID Ensiklopedia Besar Rusia dalam talian	2037432
ID Ensiklopedia Britannica Dalam Talian	science/calcium
ID Ensiklopedia Britannica Dalam Talian	science/calcium-ion
ID EuroVoc	5304
ID Freebase	/m/025tkqy
ID GND	4069806-3
ID Gran Enciclopèdia Catalana	0087196
ID Gran Enciclopèdia Catalana	0013023
ID J9U Perpustakaan Negara Israel	987007293780405171
ID KBpedia	Calcium
ID NE.se	kalcium
ID NKCR AUT	ph116664
ID Namuwiki	칼슘
ID PSH	5752
ID Perbendaharaan Kata Pendidikan Australia	scot/3064
ID Store norske leksikon	kalsium
ID Tesaurus BNCF	8953
ID Treccani	calcio
ID Vikidia Perancis	Calcium
ID WordNet 3.1 Synset	14656826-n
ID YSO	1852
ID bahan DSSTox	DTXSID9050484
ID dalam talian Brockhaus Enzyklopädie	calcium-20
ID kewibawaan Perpustakaan Kongres	sh85018768
ID pemerihal MeSH	D002118
ID tesaurus Parlimen UK	8918
ID tesaurus UNESCO	concept4508
ID topik New York Times	subject/calcium
ID topik Quora	Calcium
ID topik Zhihu	19668568
InChI	InChI=1S/Ca
InChIKey	OYPRJOBELJOOCE-UHFFFAOYSA-N
KEGG ID	C00076
Krugosvet article	nauka_i_tehnika/himiya/KALTSI.html
Latvian National Encyclopedia Online ID	139701
Maksud Tertakrif OmegaWiki	471
NALT ID	6421
NDF-RT ID	N0000146031
OpenAlex ID	C2910173204
OpenAlex ID	C519063684
PatientsLikeMe treatment ID	calcium
Probes And Drugs ID	PD051696
PubChem CID	5460341
RxNorm ID	1895
Spanish Vikidia ID	Calcio
Store medisinske leksikon ID	kalsium
Store medisinske leksikon ID	kalsium_-_fysiologi
UK Archival Thesaurus ID	f2/mt225/4347/702
UMLS CUI	C0006675
UNII	SY7Q814VUP
USGS Thesaurus ID	1418
ZVG number	8160
nombor pendaftaran CAS	7440-70-2
pengecam AAT	300264232
pengecam NDL	00565069

Kalsium (Ca)

Sifat Fizikal

Sifat Kimia

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

sejarah

sumber

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