Na̍p, 11Nangoi-kôn |
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silvery white metallic

 Spectral lines of sodium |
Kî-pún sin-sit |
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Miàng, fù-ho |
Na̍p, Na |
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Yîn-ngî |
sodium |
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ngoi-hìn |
silvery white metallic |
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Na̍p chhai chû-khì-péu ke vi-chi |
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|
ngièn-chṳ́ sì-sú |
11 |
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ngièn-chṳ́-liòng (±) |
22.98976928(2)[1] |
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ngièn-su lui-phe̍t |
kán-kîm-su̍k |
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Chhu̍k, fûn-khî |
1 chhu̍k, s-block |
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chû-khì |
period 3 |
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thien-chṳ́ phài-lie̍t |
[Ne] 3s1 |
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per shell |
2, 8, 1 |
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vu̍t-lî sin-chṳt |
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Siông |
ku-thí |
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yùng-tiám |
370.944 K (97.794 °C, 208.029 °F) |
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pui-tiám |
1156.090 K (882.940 °C, 1621.292 °F) |
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Me̍t-thu near Sit-vûn |
0.968 g·cm−3 |
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0.927 g·cm−3 |
lìm-kie-tiám |
2573 K, 35 MPa (extrapolated) |
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Yùng-fa-ngie̍t |
2.60 kJ·mol−1 |
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Chîn-fat-ngie̍t |
97.42 kJ·mol−1 |
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Ngie̍t-yùng-liong |
28.230 J·mol−1·K−1 |
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chîn-hi-ap
P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
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chhai T (K)
|
554
|
617
|
697
|
802
|
946
|
1153
| |
Ngièn-chṳ́ sin-chṳt |
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Yông-fa-su |
+1, −1 (a strongly basic oxide) |
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Thien-fu-sin |
Pauling scale: 0.93 |
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Thien-lì-nèn |
1st: 495.8 kJ·mol−1 2nd: 4562 kJ·mol−1 3rd: 6910.3 kJ·mol−1 (more) |
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Ngièn-chṳ́ pan-kang |
empirical: 186 pm |
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Khiung-ka pan-kang |
166±9 pm |
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Van der Waals pan-kang |
227 pm |
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Miscellanea |
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Chîn-thí keu-chho |
body-centered cubic (bcc) |
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Sâng-suk thin rod |
3200 m·s−1 (at 20 °C) |
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Ngie̍t-phàng-chong |
71 µm·m−1·K−1 (at 25 °C) |
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Ngie̍t-chhòn-thô-li̍t |
142 W·m−1·K−1 |
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Thien-chú-li̍t |
47.7 nΩ·m (at 20 °C) |
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Chhṳ̀-sin |
paramagnetic[2] |
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Young's modulus |
10 GPa |
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Shear modulus |
3.3 GPa |
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Bulk modulus |
6.3 GPa |
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Mohs hardness |
0.5 |
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Brinell hardness |
0.69 MPa |
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CAS Registry Number |
7440-23-5 |
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Le̍k-sú |
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Hoat-kiàn kap siōng chá ê tông-ūi-sò͘ |
Humphry Davy (1807) |
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Chui vún-thin ke thùng-vi-su |
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Chú vùn-chông: Na̍p ke thùng-vi-su |
|
* = excited state |
Na̍p (鈉) he yit-tsúng Fa-ho̍k Ngièn-su, fa-ho̍k fù-ho vì Na, ngièn-tsṳ́ su-muk he 11, tshai Ngièn-su Tsû-khì péu chûng thi sṳ̍p-yit vi.