| Arsenic
|
33As
|
|
|
| Panagway
|
metallic grey
|
| Kinatibuk-ang mga kinaiya
|
| Ngalan, simbolo, kaiphan
|
arsenic, As, 33
|
| Paglitok
|
[[Help:Pronunciation respelling key|Plantilya:Smallcaps all-sə-nik]],
also [[Help:Pronunciation respelling key|ar-Plantilya:Smallcaps all-ik]] when attributive
|
| Kategoriyang elemento
|
metalloid
|
| Group, period, block
|
15, 4, p
|
| Gibug-aton sa atomo
|
74.92160(2)
|
| Kontorno sa elektron
|
[Ar] 4s2 3d10 4p3
2, 8, 18, 5
|
| History
|
| Pagkadiskobre
|
Early Bronze Age (2500 BC)
|
| First isolation
|
Albertus Magnus (1250)
|
| Physical properties
|
| Phase
|
magahi
|
| Density (near r.t.)
|
5.727 g·cm−3
|
| Liquid density at m.p.
|
5.22 g·cm−3
|
| Sublimation point
|
887 K, 615 °C, 1137 °F
|
| Triple point
|
1090 K (817°C), 3628[1] kPa
|
| Critical point
|
1673 K, ? MPa
|
| Heat of fusion
|
(grey) 24.44 kJ·mol−1
|
| Heat of vaporization
|
? 34.76 kJ·mol−1
|
| Molar heat capacity
|
24.64 J·mol−1·K−1
|
| Vapor pressure
|
| P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
|
| at T (K)
|
553
|
596
|
646
|
706
|
781
|
874
|
|
| Atomic properties
|
| Oxidation states
|
5, 3, 2, 1,[2] -3
(mildly acidic oxide)
|
| Electronegativity
|
2.18 (Pauling scale)
|
Ionization energies
(more)
|
1st: 947.0 kJ·mol−1
|
| 2nd: 1798 kJ·mol−1
|
| 3rd: 2735 kJ·mol−1
|
| Atomic radius
|
119 pm
|
| Covalent radius
|
119±4 pm
|
| Van der Waals radius
|
185 pm
|
| Miscellanea
|
| Crystal structure
|
simple trigonal[3]
|
| Magnetic ordering
|
diamagnetic[4]
|
| Electrical resistivity
|
(20 °C) 333 nΩ·m
|
| Thermal conductivity
|
50.2 W·m−1·K−1
|
| Young's modulus
|
8 GPa
|
| Bulk modulus
|
22 GPa
|
| Mohs hardness
|
3.5
|
| Brinell hardness
|
1440 MPa
|
| CAS registry number
|
7440-38-2
|
| Most stable isotopes
|
| Main article: Isotopes of arsenic
|
|
|
| · r
|
Ang arsenico (Iningles arsenic) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga As ug kaiphan nga atomik 33. Ang arsenico mao ang metalloid.
- ↑ Gokcen, N. A (1989). "The As (arsenic) system". Bull. Alloy Phase Diagrams. 10: 11–22. doi:10.1007/BF02882166.
- ↑ Lua error in Module:Citation/CS1 at line 1502: bad argument #1 to 'insert' (table expected, got nil).
- ↑ Arsenic, mindat.org
- ↑ editor-in-chief, David R. Lide. (2000). "Magnetic susceptibility of the elements and inorganic compounds". Handbook of Chemistry and Physics (PDF) (81 ed.). CRC press. ISBN 0849304814.
