Phî

Phî (砒), fe̍t-chá ham-cho phî-su (砒素), sṳ̂n (砷), he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì As, ngièn-chṳ́ su-muk he 33, chhai ngièn-su chû-khì-péu lî-tú phài thi 33 vi.

Phî,  ₃₃As

ngoi-kôn
metallic grey
Kî-pún sin-sit
Miàng, fù-ho	Phî, As
Yîn-ngî	arsenic
thùng-su-thí	grey (most common), yellow, black
ngoi-hìn	metallic grey
Phî chhai chû-khì-péu ke vi-chi
P ↑ As ↓ Sb germanium ← Phî → selenium
ngièn-chṳ́ sì-sú	33
ngièn-chṳ́-liòng (±)	74.921595(6)[1]
ngièn-su lui-phe̍t	lui-kîm-su̍k
Chhu̍k, fûn-khî	15 chhu̍k, p-block
chû-khì	period 4
thien-chṳ́ phài-lie̍t	[Ar] 3d10 4s2 4p3
per shell	2, 8, 18, 5
vu̍t-lî sin-chṳt
Siông	ku-thí
Sublimation point	887 K ​(615 °C, ​1137 °F)
Me̍t-thu near Sit-vûn	5.727 g·cm−3
5.22 g·cm−3
Sâm-siong-tiám	1090 K, ​3628 kPa[2]
lìm-kie-tiám	1673 K, ? MPa
Yùng-fa-ngie̍t	grey: 24.44 kJ·mol−1
Chîn-fat-ngie̍t	34.76 kJ·mol−1 (?)
Ngie̍t-yùng-liong	24.64 J·mol−1·K−1
chîn-hi-ap P (Pa) 1 10 100 1 k 10 k 100 k chhai T (K) 553 596 646 706 781 874
Ngièn-chṳ́ sin-chṳt
Yông-fa-su	5, 4, 3, 2, 1,[3] −1, −2, −3 ​(a mildly acidic oxide)
Thien-fu-sin	Pauling scale: 2.18
Thien-lì-nèn	1st: 947.0 kJ·mol−1 2nd: 1798 kJ·mol−1 3rd: 2735 kJ·mol−1 (more)
Ngièn-chṳ́ pan-kang	empirical: 119 pm
Khiung-ka pan-kang	119±4 pm
Van der Waals pan-kang	185 pm
Miscellanea
Chîn-thí keu-chho	​rhombohedral
Ngie̍t-phàng-chong	5.6 µm·m−1·K−1[4] (at r.t.)
Ngie̍t-chhòn-thô-li̍t	50.2 W·m−1·K−1
Thien-chú-li̍t	333 nΩ·m (at 20 °C)
Chhṳ̀-sin	diamagnetic[5]
Young's modulus	8 GPa
Bulk modulus	22 GPa
Mohs hardness	3.5
Brinell hardness	1440 MPa
CAS Registry Number	7440-38-2
Le̍k-sú
Fat-hien	Early Bronze Age (2500 BC)
First isolation	Albertus Magnus (1250)
Chui vún-thin ke thùng-vi-su
Chú vùn-chông: Phî ke thùng-vi-su
iso NA half-life DM DE (MeV) DP 73As syn 80.3 d ε – 73Ge γ 0.05D, 0.01D, e – 74As syn 17.78 d ε 74Ge β+ 74Ge γ – β− 74Se 75As 100% 75As is stable with 42 neutrons