Cadmium, 48Cd
|
Ki-pún sèng-chit |
---|
Miâ, hû-hō |
cadmium, Cd |
---|
Gōa-hêng |
silvery bluish-gray metallic |
---|
Cadmium tī chiu-kî-piáu lāi ê ūi-tì |
---|
|
Goân-chú-hoan |
48 |
---|
Goân-chú-liōng (±) |
112.414(4)[1] |
---|
Goân-sò͘ lūi-pia̍t |
kòe-tō͘ kim-sio̍k alternatively considered a post-transition metal |
---|
Cho̍k, hun-khu |
12 cho̍k, d khu |
---|
Chiu-kî |
tē 5 chiu-kî |
---|
Tiān-chú pâi-lia̍t |
[Kr] 4d10 5s2 |
---|
per shell |
2, 8, 18, 18, 2 |
---|
Bu̍t-lí sèng-chit |
---|
Siòng |
solid |
---|
Iûⁿ-tiám |
594.22 K (321.07 °C, 609.93 °F) |
---|
Hut-tiám |
1040 K (767 °C, 1413 °F) |
---|
Bi̍t-tō͘ (sek-un) |
8.65 g·cm−3 |
---|
7.996 g·cm−3 |
Iûⁿ-hoà-jia̍t |
6.21 kJ·mol−1 |
---|
Cheng-hoat-jia̍t |
99.87 kJ·mol−1 |
---|
Jia̍t-iông-liōng |
26.020 J·mol−1·K−1 |
---|
cheng-khì-ap
P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
|
tī T (K)
|
530
|
583
|
654
|
745
|
867
|
1040
| |
Goân-chú sèng-chit |
---|
Sng-hòa-sò͘ |
2, 1, −2 (a mildly basic oxide) |
---|
Tiān-hū-tō͘ |
Pauling scale: 1.69 |
---|
Tiān-lī-lêng |
1st: 867.8 kJ·mol−1 2nd: 1631.4 kJ·mol−1 3rd: 3616 kJ·mol−1 |
---|
Goân-chú pòaⁿ-kèng |
empirical: 151 pm |
---|
Kiōng-kè pòaⁿ-kèng |
144±9 pm |
---|
Van der Waals pòaⁿ-kèng |
158 pm |
---|
Cha̍p-lio̍k |
---|
Chiⁿ-thé kò͘-chō |
hexagonal close-packed (hcp) |
---|
Siaⁿ-sok (sòe kùn-á) |
2310 m·s−1 (at 20 °C) |
---|
Jia̍t-phòng-tiòng |
30.8 µm·m−1·K−1 (at 25 °C) |
---|
Jia̍t-thoân-tō-lu̍t |
96.6 W·m−1·K−1 |
---|
Tiān-chó͘-lu̍t |
72.7 nΩ·m (at 22 °C) |
---|
Chû-sèng |
diamagnetic[2] |
---|
Young hē-sò͘ |
50 GPa |
---|
Shear hē-sò͘ |
19 GPa |
---|
Bulk hē-sò͘ |
42 GPa |
---|
Poisson pí |
0.30 |
---|
Mohs ngē-tō͘ |
2.0 |
---|
Brinell ngē-tō͘ |
203–220 MPa |
---|
CAS teng-kì pian-hō |
7440-43-9 |
---|
Le̍k-sú |
---|
Hoat-hiān kap siōng chá ê tông-ūi-sò͘ |
Karl Samuel Leberecht Hermann and Friedrich Stromeyer (1817) |
---|
hō-miâ |
Friedrich Stromeyer (1817) |
---|
Chòe ún-tēng ê tông-ūi-sò͘ |
---|
Chú bûn-chiong: cadmium ê tông-ūi-sò͘ |
iso
|
NA
|
half-life
|
DM
|
DE (MeV)
|
DP
|
106Cd
|
1.25%
|
>4.1×1020 y
|
(β+β+)
|
2.770
|
106Pd
|
107Cd
|
syn
|
6.5 h
|
ε
|
1.417
|
107Ag
|
108Cd
|
0.89%
|
>4.1×1017 y
|
(β+β+)
|
0.272
|
108Pd
|
109Cd
|
syn
|
462.6 d
|
ε
|
0.214
|
109Ag
|
110Cd
|
12.49%
|
–
|
(SF)
|
<22.486
|
|
111Cd
|
12.8%
|
–
|
(SF)
|
<21.883
|
|
112Cd
|
24.13%
|
–
|
(SF)
|
<20.733
|
|
113Cd
|
12.22%
|
7.7×1015 y
|
β−
|
0.316
|
113In
|
113mCd
|
syn
|
14.1 y
|
β−
|
0.580
|
113In
|
IT
|
0.264
|
113Cd
|
114Cd
|
28.73%
|
>6.4×1018 y
|
(β−β−)
|
0.540
|
114Sn
|
115Cd
|
syn
|
53.46 h
|
β−
|
1.446
|
115In
|
116Cd
|
7.49%
|
3.1×1019 y
|
β−β−
|
2.809
|
116Sn
| |
Decay modes in parentheses are predicted, but have not yet been observed |
Cadmium sī 1 ê hoà-ha̍k goân-sò͘. I ê goân-chú-hoan sī 48, hoà-ha̍k hû-hō sī Cd.