Wolfram, ia̍h kiò Tungsten, sī 1 ê hoà-ha̍k goân-sò͘. I ê goân-chú-hoan sī 74, hoà-ha̍k hû-hō sī W.
Wolfram, 74W |
| Ki-pún sèng-chit |
|---|
| Miâ, hû-hō | wolfram, W |
|---|
| Phian-miâ | tungsten |
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| Gōa-hêng | grayish white, lustrous |
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| Wolfram tī chiu-kî-piáu lāi ê ūi-tì |
|---|
|
| Goân-chú-hoan | 74 |
|---|
| Goân-chú-liōng (±) | 183.84(1)[1] |
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| Goân-sò͘ lūi-pia̍t | kòe-tō͘ kim-sio̍k |
|---|
| Cho̍k, hun-khu | 6 cho̍k, d khu |
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| Chiu-kî | tē 6 chiu-kî |
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| Tiān-chú pâi-lia̍t | [Xe] 4f14 5d4 6s2[2] |
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| per shell | 2, 8, 18, 32, 12, 2 |
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| Bu̍t-lí sèng-chit |
|---|
| Siòng | kò͘-thé |
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| Iûⁿ-tiám | 3695 K (3422 °C, 6192 °F) |
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| Hut-tiám | 6203 K (5930 °C, 10,706 °F) |
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| Bi̍t-tō͘ (sek-un) | 19.25 g·cm−3 |
|---|
| 17.6 g·cm−3 |
| Lîm-kài-tiám | 13,892 K, MPa |
|---|
| Iûⁿ-hoà-jia̍t | 35.3 kJ·mol−1 |
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| Cheng-hoat-jia̍t | 774 kJ·mol−1 |
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| Jia̍t-iông-liōng | 24.27 J·mol−1·K−1 |
|---|
cheng-khì-ap| P (Pa) | 1 | 10 | 100 | 1 k | 10 k | 100 k | | tī T (K) | 3477 | 3773 | 4137 | 4579 | 5127 | 5823 |
|
| Goân-chú sèng-chit |
|---|
| Sng-hòa-sò͘ | 6, 5, 4, 3, 2, 1, 0, −1, −2, −4 (a mildly acidic oxide) |
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| Tiān-hū-tō͘ | Pauling scale: 2.36 |
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| Tiān-lī-lêng | 1st: 770 kJ·mol−1
2nd: 1700 kJ·mol−1 |
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| Goân-chú pòaⁿ-kèng | empirical: 139 pm |
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| Kiōng-kè pòaⁿ-kèng | 162±7 pm |
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| Cha̍p-lio̍k |
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| Chiⁿ-thé kò͘-chō | body-centered cubic (bcc) |
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| Siaⁿ-sok (sòe kùn-á) | 4620 m·s−1 (at r.t.) (annealed) |
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| Jia̍t-phòng-tiòng | 4.5 µm·m−1·K−1 (at 25 °C) |
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| Jia̍t-thoân-tō-lu̍t | 173 W·m−1·K−1 |
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| Tiān-chó͘-lu̍t | 52.8 nΩ·m (at 20 °C) |
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| Chû-sèng | paramagnetic[3] |
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| Young hē-sò͘ | 411 GPa |
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| Shear hē-sò͘ | 161 GPa |
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| Bulk hē-sò͘ | 310 GPa |
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| Poisson pí | 0.28 |
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| Mohs ngē-tō͘ | 7.5 |
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| Vickers ngē-tō͘ | 3430–4600 MPa |
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| Brinell ngē-tō͘ | 2000–4000 MPa |
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| CAS teng-kì pian-hō | 7440-33-7 |
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| Le̍k-sú |
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| Hō-miâ | from German wolfram |
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| Hoat-hiān | Carl Wilhelm Scheele (1781) |
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| Siōng chá hû-lî | Juan José Elhuyar and Fausto Elhuyar (1783) |
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| Chòe ún-tēng ê tông-ūi-sò͘ |
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| Chú bûn-chiong: wolfram ê tông-ūi-sò͘ |
| iso | NA | half-life | DM | DE (MeV) | DP |
|---|
| 180W | 0.12% | 1.8×1018 y | α | 2.516 | 176Hf | | 181W | syn | 121.2 d | ε | 0.188 | 181Ta | | 182W | 26.50% | >1.7×1020 y | (α) | 1.772 | 178Hf | | 183W | 14.31% | >8×1019 y | (α) | 1.680 | 179Hf | | 184W | 30.64% | >1.8×1020 y | (α) | 1.123 | 180Hf | | 185W | syn | 75.1 d | β− | 0.433 | 185Re | | 186W | 28.43% | >4.1×1018 y | (α) | 1.656 | 182Hf | | (β−β−) | – | 186Os |
|
| Decay modes in parentheses are predicted, but have not yet been observed |
Chham-khó
