Khā-lú-siúm (Ji̍t-pún-gí: カルシウム) sī 1 ê hoà-ha̍k goân-sò͘, goân-chú-hoan sī 20, hoà-ha̍k hû-hō sī Ca. I ê Eng-bûn sī Calcium, chia sû ùi Latin-gí calcis ("chio̍h-hoe") lâi.
Quick Facts Ki-pún sèng-chit, Miâ, hû-hō ...
Khā-lú-siúm, 20Ca
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 Spectral lines of calcium |
| Ki-pún sèng-chit |
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| Miâ, hû-hō |
Khā-lú-siúm, Ca |
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| Eng-bûn |
calcium |
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| Gōa-hêng |
dull gray, silver; with a pale yellow tint[1] |
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| Khā-lú-siúm tī chiu-kî-piáu lāi ê ūi-tì |
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|
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| Goân-chú-hoan |
20 |
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| Goân-chú-liōng (±) |
40.078(4)[2] |
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| Goân-sò͘ lūi-pia̍t |
kiⁿ-thó͘ kim-sio̍k |
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| Cho̍k, hun-khu |
2 cho̍k, s khu |
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| Chiu-kî |
tē 4 chiu-kî |
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| Tiān-chú pâi-lia̍t |
[Ar] 4s2 |
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| per shell |
2, 8, 8, 2 |
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| Bu̍t-lí sèng-chit |
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| Siòng |
kò͘-thé |
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| Iûⁿ-tiám |
1115 K (842 °C, 1548 °F) |
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| Hut-tiám |
1757 K (1484 °C, 2703 °F) |
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| Bi̍t-tō͘ (sek-un) |
1.55 g·cm−3 |
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|
1.378 g·cm−3 |
| Iûⁿ-hoà-jia̍t |
8.54 kJ·mol−1 |
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| Cheng-hoat-jia̍t |
154.7 kJ·mol−1 |
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| Jia̍t-iông-liōng |
25.929 J·mol−1·K−1 |
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cheng-khì-ap
| P (Pa) |
1 |
10 |
100 |
1 k |
10 k |
100 k |
| tī T (K) |
864 |
956 |
1071 |
1227 |
1443 |
1755 |
|
| Goân-chú sèng-chit |
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| Sng-hòa-sò͘ |
+2, +1, −1[3] (a strongly basic oxide) |
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| Tiān-hū-tō͘ |
Pauling scale: 1.00 |
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| Tiān-lī-lêng |
1st: 589.8 kJ·mol−1
2nd: 1145.4 kJ·mol−1
3rd: 4912.4 kJ·mol−1
(more) |
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| Goân-chú pòaⁿ-kèng |
empirical: 197 pm |
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| Kiōng-kè pòaⁿ-kèng |
176±10 pm |
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| Van der Waals pòaⁿ-kèng |
231 pm |
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| Cha̍p-lio̍k |
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| Chiⁿ-thé kò͘-chō |
face-centered cubic (fcc) |
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| Siaⁿ-sok (sòe kùn-á) |
3810 m·s−1 (at 20 °C) |
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| Jia̍t-phòng-tiòng |
22.3 µm·m−1·K−1 (at 25 °C) |
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| Jia̍t-thoân-tō-lu̍t |
201 W·m−1·K−1 |
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| Tiān-chó͘-lu̍t |
33.6 nΩ·m (at 20 °C) |
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| Chû-sèng |
diamagnetic |
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| Young hē-sò͘ |
20 GPa |
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| Shear hē-sò͘ |
7.4 GPa |
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| Bulk hē-sò͘ |
17 GPa |
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| Poisson pí |
0.31 |
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| Mohs ngē-tō͘ |
1.75 |
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| Brinell ngē-tō͘ |
170–416 MPa |
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| CAS teng-kì pian-hō |
7440-70-2 |
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| Le̍k-sú |
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| Hoat-hiān kap siōng chá ê tông-ūi-sò͘ |
Humphry Davy (1808) |
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| Chòe ún-tēng ê tông-ūi-sò͘ |
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|
Chú bûn-chiong: Khā-lú-siúm ê tông-ūi-sò͘ |
| iso |
NA |
half-life |
DM |
DE (MeV) |
DP |
| 40Ca |
96.941% |
>5.9×1021 y |
(β+β+) |
0.194 |
40Ar |
| 41Ca |
trace |
1.03×105 y |
ε |
– |
41K |
| 42Ca |
0.647% |
42Ca is stable with 22 neutrons |
| 43Ca |
0.135% |
43Ca is stable with 23 neutrons |
| 44Ca |
2.086% |
44Ca is stable with 24 neutrons |
| 45Ca |
syn |
162.7 d |
β− |
0.258 |
45Sc |
| 46Ca |
0.004% |
>8.8×1022 y |
(β−β−) |
0.988 |
46Ti |
| 47Ca |
syn |
4.536 d |
β− |
0.694, 1.99 |
47Sc |
| γ |
1.297 |
– |
| 48Ca |
0.187% |
4.3×1019 y |
β−β− |
4.274 |
48Ti |
| (β−) |
0.0058 |
48Sc |
|
|
Decay modes in parentheses are predicted, but have not yet been observed |
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