Phìn

Phìn, ₅B
ngoi-kôn
	black-brown; ; boron (β-rhombohedral)
Kî-pún sin-sit
Miàng, fù-ho	Phìn, B
Yîn-ngî	boron
thùng-su-thí	α-, β-rhombohedral, β-tetragonal (and more)
ngoi-hìn	black-brown
Phìn chhai chû-khì-péu ke vi-chi
	beryllium ← Phìn → Than
ngièn-chṳ́ sì-sú	5
ngièn-chṳ́-liòng	10.81 (10.806–10.821)
ngièn-su lui-phe̍t	lui-kîm-su̍k
Chhu̍k, fûn-khî	13 chhu̍k, p-block
chû-khì	period 2
thien-chṳ́ phài-lie̍t	[He] 2s2 2p1
per shell	2, 3
vu̍t-lî sin-chṳt
Siông	ku-thí
yùng-tiám	2349 K (2076 °C, 3769 °F)
pui-tiám	4200 K (3927 °C, 7101 °F)
yùng-tiám ke yi̍t-thí me̍t-thu	2.08 g·cm−3
Yùng-fa-ngie̍t	50.2 kJ·mol−1
Chîn-fat-ngie̍t	508 kJ·mol−1
Ngie̍t-yùng-liong	11.087 J·mol−1·K−1
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	3, 2, 1, −1, −5 (a mildly acidic oxide)
Thien-fu-sin	Pauling scale: 2.04
Thien-lì-nèn	1st: 800.6 kJ·mol−1 ; 2nd: 2427.1 kJ·mol−1 ; 3rd: 3659.7 kJ·mol−1 ; (more)
Ngièn-chṳ́ pan-kang	empirical: 90 pm
Khiung-ka pan-kang	84±3 pm
Van der Waals pan-kang	192 pm
Miscellanea
Chîn-thí keu-chho	rhombohedral
Sâng-suk thin rod	16,200 m·s−1 (at 20 °C)
Ngie̍t-phàng-chong	β form: 5–7 µm·m−1·K−1 (at 25 °C)
Ngie̍t-chhòn-thô-li̍t	27.4 W·m−1·K−1
Thien-chú-li̍t	~106 Ω·m (at 20 °C)
Chhṳ̀-sin	diamagnetic
Mohs hardness	~9.5
CAS Registry Number	7440-42-8
Le̍k-sú
Fat-hien	Joseph Louis Gay-Lussac and Louis Jacques Thénard (30 June 1808)
First isolation	Humphry Davy (9 July 1808)
Chui vún-thin ke thùng-vi-su
	Chú vùn-chông: Phìn ke thùng-vi-su
	10B content may be as low as 19.1% and as high as 20.3% in natural samples. 11B is the remainder in such cases.

Phìn (硼) he yit-tsúng Fa-ho̍k Ngièn-su, fa-ho̍k fù-ho vì B, ngièn-tsṳ́ su-muk he 5, tshai Ngièn-su Tsû-khì péu chûng thi-ńg vi.

↑ Van Setten et al. 2007, pp. 2460–1
↑ Conventional Atomic Weights 2013. Commission on Isotopic Abundances and Atomic Weights
↑ Standard Atomic Weights 2013. Commission on Isotopic Abundances and Atomic Weights
↑ Zhang, K.Q.; Guo, B.; Braun, V.; Dulick, M.; Bernath, P.F. (1995). "Infrared Emission Spectroscopy of BF and AIF" (PDF). J. Molecular Spectroscopy 170: 82. Bibcode:1995JMoSp.170...82Z. doi:10.1006/jmsp.1995.1058.
↑ 模板:Cite article
↑ Holcombe Jr., C. E.; Smith, D. D.; Lorc, J. D.; Duerlesen, W. K.; Carpenter; D. A. (October 1973). "Physical-Chemical Properties of beta-Rhombohedral Boron". High Temp. Sci. 5 (5): 349–57.
↑ Lide, David R. (ed.) (2000). Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics (PDF). CRC press. ISBN 0849304814.
↑ Gay Lussac, J.L. and Thenard, L.J. (1808). "Sur la décomposition et la recomposition de l'acide boracique". Annales de chimie 68: 169–174.
↑ Davy H (1809). "An account of some new analytical researches on the nature of certain bodies, particularly the alkalies, phosphorus, sulphur, carbonaceous matter, and the acids hitherto undecomposed: with some general observations on chemical theory". Philosophical Transactions of the Royal Society of London 99: 39–104. doi:10.1098/rstl.1809.0005.
↑ ^10.0 ^10.1 "Atomic Weights and Isotopic Compositions for All Elements". National Institute of Standards and Technology. 2008-09-21 chhà-khon.
↑ Szegedi, S.; Váradi, M.; Buczkó, Cs. M.; Várnagy, M.; Sztaricskai, T. (1990). "Determination of boron in glass by neutron transmission method". Journal of Radioanalytical and Nuclear Chemistry Letters 146 (3): 177. doi:10.1007/BF02165219.

[1] Van Setten et al. 2007, pp. 2460–1

[CIAAW-2] Conventional Atomic Weights 2013. Commission on Isotopic Abundances and Atomic Weights

[IUPAC-3] Standard Atomic Weights 2013. Commission on Isotopic Abundances and Atomic Weights

[v1-4] Zhang, K.Q.; Guo, B.; Braun, V.; Dulick, M.; Bernath, P.F. (1995). "Infrared Emission Spectroscopy of BF and AIF" (PDF). J. Molecular Spectroscopy 170: 82. Bibcode:1995JMoSp.170...82Z. doi:10.1006/jmsp.1995.1058.

[5] 模板:Cite article

[6] Holcombe Jr., C. E.; Smith, D. D.; Lorc, J. D.; Duerlesen, W. K.; Carpenter; D. A. (October 1973). "Physical-Chemical Properties of beta-Rhombohedral Boron". High Temp. Sci. 5 (5): 349–57.

[magnet-7] Lide, David R. (ed.) (2000). Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics (PDF). CRC press. ISBN 0849304814.

[Lussac-8] Gay Lussac, J.L. and Thenard, L.J. (1808). "Sur la décomposition et la recomposition de l'acide boracique". Annales de chimie 68: 169–174.

[Davy-9] Davy H (1809). "An account of some new analytical researches on the nature of certain bodies, particularly the alkalies, phosphorus, sulphur, carbonaceous matter, and the acids hitherto undecomposed: with some general observations on chemical theory". Philosophical Transactions of the Royal Society of London 99: 39–104. doi:10.1098/rstl.1809.0005.

[NISTic-10] 10.0 ^10.1 "Atomic Weights and Isotopic Compositions for All Elements". National Institute of Standards and Technology. 2008-09-21 chhà-khon.

[11] Szegedi, S.; Váradi, M.; Buczkó, Cs. M.; Várnagy, M.; Sztaricskai, T. (1990). "Determination of boron in glass by neutron transmission method". Journal of Radioanalytical and Nuclear Chemistry Letters 146 (3): 177. doi:10.1007/BF02165219.

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