Niobium sī 1 ê hoà-ha̍k goân-sò͘. I ê goân-chú-hoan sī 41, hoà-ha̍k hû-hō sī Nb.
Niobium, 41Nb
 |
| Ki-pún sèng-chit |
|---|
| Miâ, hû-hō |
niobium, Nb |
|---|
| Gōa-hêng |
gray metallic, bluish when oxidized |
|---|
| Niobium tī chiu-kî-piáu lāi ê ūi-tì |
|---|
|
|
| Goân-chú-hoan |
41 |
|---|
| Goân-chú-liōng (±) |
92.90637(2)[1] |
|---|
| Goân-sò͘ lūi-pia̍t |
kòe-tō͘ kim-sio̍k |
|---|
| Cho̍k, hun-khu |
5 cho̍k, d khu |
|---|
| Chiu-kî |
tē 5 chiu-kî |
|---|
| Tiān-chú pâi-lia̍t |
[Kr] 4d4 5s1 |
|---|
| per shell |
2, 8, 18, 12, 1 |
|---|
| Bu̍t-lí sèng-chit |
|---|
| Siòng |
solid |
|---|
| Iûⁿ-tiám |
2750 K (2477 °C, 4491 °F) |
|---|
| Hut-tiám |
5017 K (4744 °C, 8571 °F) |
|---|
| Bi̍t-tō͘ (sek-un) |
8.57 g·cm−3 |
|---|
| Iûⁿ-hoà-jia̍t |
30 kJ·mol−1 |
|---|
| Cheng-hoat-jia̍t |
689.9 kJ·mol−1 |
|---|
| Jia̍t-iông-liōng |
24.60 J·mol−1·K−1 |
|---|
cheng-khì-ap
| P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
|
| tī T (K)
|
2942
|
3207
|
3524
|
3910
|
4393
|
5013
| |
| Goân-chú sèng-chit |
|---|
| Sng-hòa-sò͘ |
5, 4, 3, 2, 1, −1, −3 (a mildly acidic oxide) |
|---|
| Tiān-hū-tō͘ |
Pauling scale: 1.6 |
|---|
| Tiān-lī-lêng |
1st: 652.1 kJ·mol−1
2nd: 1380 kJ·mol−1
3rd: 2416 kJ·mol−1 |
|---|
| Goân-chú pòaⁿ-kèng |
empirical: 146 pm |
|---|
| Kiōng-kè pòaⁿ-kèng |
164±6 pm |
|---|
| Cha̍p-lio̍k |
|---|
| Chiⁿ-thé kò͘-chō |
body-centered cubic (bcc) |
|---|
| Siaⁿ-sok (sòe kùn-á) |
3480 m·s−1 (at 20 °C) |
|---|
| Jia̍t-phòng-tiòng |
7.3 µm·m−1·K−1 |
|---|
| Jia̍t-thoân-tō-lu̍t |
53.7 W·m−1·K−1 |
|---|
| Tiān-chó͘-lu̍t |
152 nΩ·m (at 0 °C) |
|---|
| Chû-sèng |
paramagnetic |
|---|
| Young hē-sò͘ |
105 GPa |
|---|
| Shear hē-sò͘ |
38 GPa |
|---|
| Bulk hē-sò͘ |
170 GPa |
|---|
| Poisson pí |
0.40 |
|---|
| Mohs ngē-tō͘ |
6.0 |
|---|
| Vickers ngē-tō͘ |
870–1320 MPa |
|---|
| Brinell ngē-tō͘ |
735–2450 MPa |
|---|
| CAS teng-kì pian-hō |
7440-03-1 |
|---|
| Le̍k-sú |
|---|
| Hō-miâ |
after Niobe in Greek mythology, daughter of Tantalus (tantalum) |
|---|
| Hoat-hiān |
Charles Hatchett (1801) |
|---|
| Siōng chá hû-lî |
Christian Wilhelm Blomstrand (1864) |
|---|
| Recognized as a distinct element by |
Heinrich Rose (1844) |
|---|
| Chòe ún-tēng ê tông-ūi-sò͘ |
|---|
|
Chú bûn-chiong: niobium ê tông-ūi-sò͘ |
| iso
|
NA
|
half-life
|
DM
|
DE (MeV)
|
DP
|
| 90Nb
|
syn
|
14.6 h
|
β+
|
–
|
90Zr
|
| 91Nb
|
syn
|
680 y
|
ε
|
–
|
91Zr
|
| 91mNb
|
syn
|
60.86 d
|
IT
|
0.104e
|
91Nb
|
| 92m1Nb
|
syn
|
10.15 d
|
ε
|
–
|
92Zr
|
| γ
|
0.934
|
–
|
| 92Nb
|
syn
|
3.47×107 y
|
ε
|
–
|
92Zr
|
| γ
|
0.561, 0.934
|
–
|
| 93Nb
|
100%
|
–
|
(SF)
|
<0.943
|
|
| 93mNb
|
syn
|
16.13 y
|
IT
|
0.031e
|
93Nb
|
| 94Nb
|
syn
|
20300 y
|
β−
|
0.471
|
94Mo
|
| γ
|
0.702, 0.871
|
–
|
| 95Nb
|
syn
|
34.991 d
|
β−
|
0.159
|
95Mo
|
| γ
|
0.765
|
–
|
| 95mNb
|
syn
|
3.61 d
|
IT
|
0.235
|
95Nb
|
| 96Nb
|
syn
|
23.4 h
|
β−
|
–
|
96Mo
| |
|
Decay modes in parentheses are predicted, but have not yet been observed |
