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Larik 1:
{{Elementbox
|name=kalsium
|number=20
|symbol=Ca
|left=[[kalium]]
|right=[[skandium]]
|above=[[magnesium|Mg]]
|below=[[strontium|Sr]]
|series=logam alkali tanah
|series comment=
|group=2
|period=4
|block=s
|series color=
|phase color=
|appearance=putih kapérakan
|image name=Ca,20
|image size=
|image name comment=
|image name 2=
|image name 2 comment=
|atomic mass=40,078
|atomic mass 2=4
|atomic mass comment=
|electron configuration=[[[argon|Ar]]] 4s<sup>2</sup>
|electrons per shell=2, 8, 8, 2
|color=
|phase=solid
|phase comment=
|density gplstp=
|density gpcm3nrt=1,55
|density gpcm3nrt 2=
|density gpcm3mp=1,378
|melting point K=1115
|melting point C=842
|melting point F=1548
|boiling point K=1757
|boiling point C=1484
|boiling point F=2703
|triple point K=
|triple point kPa=
|critical point K=
|critical point MPa=
|heat fusion=8,54
|heat fusion 2=
|heat vaporization=154,7
|heat capacity=25,929
|vapor pressure 1=864
|vapor pressure 10=956
|vapor pressure 100=1071
|vapor pressure 1 k=1227
|vapor pressure 10 k=1443
|vapor pressure 100 k=1755
|vapor pressure comment=
|crystal structure=kubik mawa pusat muka
|oxidation states=2
|oxidation states comment=oksida [[basa]] kuwat
|electronegativity=1,00
|number of ionization energies=4
|1st ionization energy=589,8
|2nd ionization energy=1145,4
|3rd ionization energy=4912,4
|atomic radius=[[1 E-10 m|180]]
|atomic radius calculated=[[1 E-10 m|194]]
|covalent radius=[[1 E-10 m|174]]
|Van der Waals radius=
|magnetic ordering=[[paramagnetik]]
|electrical resistivity=
|electrical resistivity at 0=
|electrical resistivity at 20=33,6 n
|thermal conductivity=201
|thermal conductivity 2=
|thermal diffusivity=
|thermal expansion=
|thermal expansion at 25=22,3
|speed of sound=
|speed of sound rod at 20=3810
|speed of sound rod at r.t.=
|Young's modulus=20
|Shear modulus=7,4
|Bulk modulus=17
|Poisson ratio=0,31
|Mohs hardness=1,75
|Vickers hardness=
|Brinell hardness=167
|CAS number=7440-70-2
|isotopes=
{{Elementbox_isotopes_stable | mn=40 | sym=Ca | na=96,941% | n=20 }}
{{Elementbox_isotopes_decay | mn=41 | sym=Ca | na=[[radioisotop sintetik|syn]] | hl=[[1 E12 s|1,03×10<sup>5</sup> tahun]] | dm=[[tangkapan elektron|ε]] | de=- | pn=41 | ps=[[kalium|K]] }}
{{Elementbox_isotopes_stable | mn=42 | sym=Ca | na=0,647% | n=22 }}
{{Elementbox_isotopes_stable | mn=43 | sym=Ca | na=0,135% | n=23 }}
{{Elementbox_isotopes_stable | mn=44 | sym=Ca | na=2,086% | n=24 }}
{{Elementbox_isotopes_decay | mn=45 | sym=Ca | na=[[radioisotop sintetik|syn]] | hl=[[1 E7 s|162,7 hari]] | dm=[[pererasan beta|β<sup>-</sup>]] | de=0,258 | pn=45 | ps=[[Skandium|Sc]] }}
{{Elementbox_isotopes_decay | mn=46 | sym=Ca | na=0,004% | hl=[[1 E19 s dan lebih|>2,8×10<sup>15</sup> tahun]] | dm=[[pererasan ganda beta|β<sup>-</sup>β<sup>-</sup>]] | de=? | pn=46 | ps=[[titanium|Ti]] }}
{{Elementbox_isotopes_decay2 | mn=47 | sym=Ca | na=[[radioisotop sintetik|syn]] | hl=[[1 E5 s|4,536 hari]] | dm1=[[pererasan beta|β<sup>-</sup>]] | de1=0,694, 1,99 | pn1=47 | ps1=[[Skandium|Sc]] |
dm2=[[sinar gamma|γ]] | de2=1.297 | pn2= | ps2=- }}
{{Elementbox_isotopes_decay | mn=48 | sym=Ca | na=0,187% | hl=[[1 E19 s dan lebih|>4×10<sup>19</sup> tahun]] | dm=[[pererasan beta ganda|β<sup>-</sup>β<sup>-</sup>]] | de=? | pn=48 | ps=[[titanium|Ti]] }}
|isotopes comment=
}}
[[Gambar:Calcium unter Argon Schutzgasatmosphäre.jpg|thumb|275px|Kalsium.]]
'''Kalsium''' (''calcium'' (Ca)), iku sawijining unsur élemèn kimia, salah sawijiné [[logam]] alkalin [[bumi]] saka klompok 2 (IIa) ing tabel periodik.<ref name="Britannica">[http://www.britannica.com/EBchecked/topic/88956/calcium-Ca Britannica] (diaksès tanggal 19 Mei 2011)</ref> Kalsium iku unsur logam sing akèh dhéwé sajroning awak manungsa lan élemèn kalima sing akèh dhéwé ing kerak Bumi.<ref name="Britannica"/>
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