Samarium sī 1 ê hoà-ha̍k goân-sò͘. I ê goân-chú-hoan sī 62, hoà-ha̍k hû-hō sī Sm.
Samarium, 62Sm
 |
| Ki-pún sèng-chit |
|---|
| Miâ, hû-hō |
samarium, Sm |
|---|
| Tông-sò͘-thé |
α form |
|---|
| Gōa-hêng |
silvery white |
|---|
| Samarium tī chiu-kî-piáu lāi ê ūi-tì |
|---|
|
|
| Goân-chú-hoan |
62 |
|---|
| Goân-chú-liōng (±) |
150.36(2)[1] |
|---|
| Goân-sò͘ lūi-pia̍t |
lanthanum-hē |
|---|
| Cho̍k, hun-khu |
n/a, f khu |
|---|
| Chiu-kî |
tē 6 chiu-kî |
|---|
| Tiān-chú pâi-lia̍t |
[Xe] 4f6 6s2 |
|---|
| per shell |
2, 8, 18, 24, 8, 2 |
|---|
| Bu̍t-lí sèng-chit |
|---|
| Siòng |
solid |
|---|
| Iûⁿ-tiám |
1345 K (1072 °C, 1962 °F) |
|---|
| Hut-tiám |
2173 K (1900 °C, 3452 °F) |
|---|
| Bi̍t-tō͘ (sek-un) |
7.52 g·cm−3 |
|---|
|
7.16 g·cm−3 |
| Iûⁿ-hoà-jia̍t |
8.62 kJ·mol−1 |
|---|
| Cheng-hoat-jia̍t |
192 kJ·mol−1 |
|---|
| Jia̍t-iông-liōng |
29.54 J·mol−1·K−1 |
|---|
cheng-khì-ap
| P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
|
| tī T (K)
|
1001
|
1106
|
1240
|
(1421)
|
(1675)
|
(2061)
| |
| Goân-chú sèng-chit |
|---|
| Sng-hòa-sò͘ |
4, 3, 2, 1 (a mildly basic oxide) |
|---|
| Tiān-hū-tō͘ |
Pauling scale: 1.17 |
|---|
| Tiān-lī-lêng |
1st: 544.5 kJ·mol−1
2nd: 1070 kJ·mol−1
3rd: 2260 kJ·mol−1 |
|---|
| Goân-chú pòaⁿ-kèng |
empirical: 180 pm |
|---|
| Kiōng-kè pòaⁿ-kèng |
198±8 pm |
|---|
| Cha̍p-lio̍k |
|---|
| Chiⁿ-thé kò͘-chō |
rhombohedral |
|---|
| Siaⁿ-sok (sòe kùn-á) |
2130 m·s−1 (at 20 °C) |
|---|
| Jia̍t-phòng-tiòng |
(r.t.) (α, poly) 12.7 µm·m−1·K−1 |
|---|
| Jia̍t-thoân-tō-lu̍t |
13.3 W·m−1·K−1 |
|---|
| Tiān-chó͘-lu̍t |
(r.t.) (α, poly) 0.940 µΩ·m |
|---|
| Chû-sèng |
paramagnetic[2] |
|---|
| Young hē-sò͘ |
α form: 49.7 GPa |
|---|
| Shear hē-sò͘ |
α form: 19.5 GPa |
|---|
| Bulk hē-sò͘ |
α form: 37.8 GPa |
|---|
| Poisson pí |
α form: 0.274 |
|---|
| Vickers ngē-tō͘ |
410–440 MPa |
|---|
| Brinell ngē-tō͘ |
440–600 MPa |
|---|
| CAS teng-kì pian-hō |
7440-19-9 |
|---|
| Le̍k-sú |
|---|
| Hō-miâ |
after the mineral samarskite (itself named after Vasili Samarsky-Bykhovets) |
|---|
| Hoat-hiān kap siōng chá ê tông-ūi-sò͘ |
Lecoq de Boisbaudran (1879) |
|---|
| Chòe ún-tēng ê tông-ūi-sò͘ |
|---|
|
Chú bûn-chiong: samarium ê tông-ūi-sò͘ |
| iso
|
NA
|
half-life
|
DM
|
DE (MeV)
|
DP
|
| 144Sm
|
3.07%
|
–
|
(β+β+)
|
1.7811
|
144Nd
|
| (α)
|
0.0761
|
140Nd
|
| 145Sm
|
syn
|
340 d
|
ε
|
–
|
145Pm
|
| 146Sm
|
trace
|
1.03×108 y
|
α
|
2.529
|
142Nd
|
| 147Sm
|
14.99%
|
1.06×1011 y
|
α
|
2.310
|
143Nd
|
| 148Sm
|
11.24%
|
7×1015 y
|
α
|
1.986
|
144Nd
|
| 149Sm
|
13.82%
|
>2×1015 y
|
(α)
|
1.870
|
145Nd
|
| 150Sm
|
7.38%
|
–
|
(α)
|
1.4495
|
146Nd
|
| 151Sm
|
syn
|
90 y
|
β−
|
–
|
151Eu
|
| 152Sm
|
26.75%
|
–
|
(α)
|
0.2203
|
148Nd
|
| 153Sm
|
syn
|
46.284 h
|
β−
|
–
|
153Eu
|
| 154Sm
|
22.75%
|
>2.3×1018 y
|
(β−β−)
|
1.2510
|
154Gd
| |
|
Decay modes in parentheses are predicted, but have not yet been observed |
