Arsenic (As)

Arsenic is the 33rd element in the periodic table and has a symbol of As and atomic number of 33. It has an atomic weight of 74.92159 and a mass number of 75. Arsenic has thirty-three protons and forty-two neutrons in its nucleus, and thirty-three electrons in four shells. It is located in group fifteen, period four and block p of the periodic table. Metalloid element of group 15. There are three allotropes, yellow, black, and grey. Reacts with halogens, concentrated oxidizing acids and hot alkalis. Albertus Magnus is believed to have been the first to isolate the element in 1250.

Atomic Number	33
Atomic Weight	74.921595
Mass Number	75

Group	15
Period	4
Block	p

Protons	33 p⁺
Neutrons	42 n⁰
Electrons	33 e^-

Physical Properties

Atomic Radius	115 pm 231 pm
Molar Volume	13.1 cm³/mol
Covalent Radius	121 pm 114 pm 106 pm 126 pm 119 pm
Metallic Radius	121 pm 148 pm
Ionic Radius	58 pm 33.5 pm 46 pm
Crystal Radius	72 pm 47.5 pm 60 pm
Van der Waals Radius	205 pm 185 pm 415 pm 185 pm 236 pm 423 pm
Density	5.75 g/cm³ 5,220 kg/m³

Chemical Properties

Energy

Proton Affinity
Electron Affinity	0.804 eV/particle
Ionization Energy	9.789 eV/particle 18.5892 eV/particle 28.349 eV/particle 50.15 eV/particle 62.767 eV/particle 121.19 eV/particle 147 eV/particle 180 eV/particle 213 eV/particle 247 eV/particle 296 eV/particle 333 eV/particle 375 eV/particle 418 eV/particle 460 eV/particle 587.6 eV/particle 628.82 eV/particle 672.9 eV/particle 728.9 eV/particle 774 eV/particle 814 eV/particle 911.7 eV/particle 956.791 eV/particle 2,357 eV/particle 2,486 eV/particle 2,626 eV/particle 2,766 eV/particle 2,938 eV/particle 3,088.1 eV/particle 3,287 eV/particle 3,411.643 eV/particle 14,447.6778 eV/particle 15,028.906 eV/particle

Heat of Vaporization	32.4 kJ/mol
Heat of Fusion
Heat of Formation	302.5 kJ/mol
Electrons

Electron Shells	2, 8, 18, 5

Valence Electrons	5 ⓘ

Electron Configuration	[Ar] 3d¹⁰ 4s² 4p³ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p³

Oxidation States	-3, -2, -1, 0, 1, 2, 3, 4, 5
Electronegativity	13.08 eV/particle 0.2068208 2.18
Electrophilicity Index	1.5610969532554257 eV/particle
States of Matter

Phase	Solid
Gas Phase
Boiling Point	889.15 K
Melting Point	1,090.15 K
Critical Pressure	22.3 MPa
Critical Temperature	1,673.15 K
Triple Point	1,090.15 K 3,700 kPa
Visual
Arsenic is a Silver. As has a CPK of #ff1493, Jmol of #bd80e3, and MOLCAS GV of #bd80e3. The Appearance of Element 33 is metallic grey. The Refractive Index of Arsenic (As) is 1.001552.
Color	Silver #ff1493 #bd80e3 #bd80e3
Appearance	metallic grey
Refractive Index	1.001552
Thermodynamic Properties
Thermal Conductivity
Thermal Expansion
Molar Heat Capacity	24.64 J/(mol K)
Specific Heat Capacity	0.329 J/(g⋅K)
Heat Capacity Ratio (Adiabatic Index)
Electrical Properties
Type	Conductor
Electrical Conductivity	3.3 MS/m
Electrical Resistivity	0.0000003 Ω*m
Superconducting Point
Magnetism
Type	diamagnetic
Magnetic Susceptibility (Mass)	-0.0000000039 m³/Kg
Magnetic Susceptibility (Molar)	-0.000000000292 m³/mol
Magnetic Susceptibility (Volume)	-0.0000223
Magnetic Ordering
Curie Point
Neel Point
Structure
The Crystal Structure of Arsenic is RHL. The lattice constant of As is 4.13 Å. The lattice angles of Element 33 are π/2, π/2, 2 π/3.
Crystal Structure	Simple Trigonal (RHL)
Lattice Constant	4.13 Å
Lattice Angles	π/2, π/2, 2 π/3
Mechanical Properties
Arsenic has a Brinell of 1440 MPa, and Mohs hardness of 3.5 MPa. The Bulk Modulus of As is 22 GPa. The Young Modulus of Element 33 is 8 GPa.
Hardness	1,440 MPa 3.5 MPa
Bulk Modulus	22 GPa
Shear Modulus
Young's Modulus	8 GPa
Poisson Ratio
Speed of Sound
Classification
The CAS Group of Arsenic is VB. The IUPAC Group of As is VA. The Glawe Number of Element 33 is 90. The Mendeleev Number of Arsenic (As) is 95. The Pettifor Number of Arsenic is 89. The Geochemical Class of As is semi-volatile. The Goldschmidt Class of Element 33 is chalcophile.
Category	Metalloids, Metalloids
CAS Group	VB
IUPAC Group	VA
Glawe Number	90
Mendeleev Number	95
Pettifor Number	89
Geochemical Class	semi-volatile
Goldschmidt Class	chalcophile

Other

The Dipole Polarizability of Arsenic is 30 plus or minus 1 a₀. As has a C6 Dispersion Coefficient (CD) of 246 a₀, and C6 Dispersion Coefficient (GB) of 260 a₀. The Allotropes of Element 33 are Yellow Arsenic, Black Arsenic, Gray Arsenic. The Neutron Cross Section of Arsenic (As) is 4.2. The Neutron Mass Absorption of Arsenic is 0.002. The Quantum Numbers of As is 4S3/2. The Space Group of Element 33 is 166 (R_3m).

Gas Basicity
Dipole Polarizability	30 ± 1 a₀
C6 Dispersion Coefficient	246 a₀ 260 a₀
Allotropes	Yellow Arsenic, Black Arsenic, Gray Arsenic
Neutron Cross Section	4.2
Neutron Mass Absorption	0.002
Quantum Numbers	4S3/2
Space Group	166 (R_3m)

Isotopes of Arsenic

Stable Isotopes	1
Unstable Isotopes	32
Natural Isotopes	1

⁶⁰As

Mass Number	60
Neutron Number	27
Relative Atomic Mass	59.993945 ± 0.000429 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	5
Quadrupole Moment
Discovery Year
Parity	+

Decay Mode	Intensity
p (proton emission)

⁶¹As

Mass Number	61
Neutron Number	28
Relative Atomic Mass	60.981535 ± 0.000322 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	3/2
Quadrupole Moment
Discovery Year
Parity	-

Decay Mode	Intensity
p (proton emission)

⁶²As

Mass Number	62
Neutron Number	29
Relative Atomic Mass	61.973784 ± 0.000322 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	1
Quadrupole Moment
Discovery Year
Parity	+

Decay Mode	Intensity
p (proton emission)

⁶³As

Mass Number	63
Neutron Number	30
Relative Atomic Mass	62.964036 ± 0.000215 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	3/2
Quadrupole Moment
Discovery Year
Parity	-

Decay Mode	Intensity
p (proton emission)

⁶⁴As

Mass Number	64
Neutron Number	31
Relative Atomic Mass	63.95756 ± 0.000218 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	69 ± 1.4 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1995
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)

⁶⁵As

Mass Number	65
Neutron Number	32
Relative Atomic Mass	64.949611 ± 0.000091 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	130.3 ± 0.6 ms
Spin	3/2
Quadrupole Moment
Discovery Year	1991
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)

⁶⁶As

Mass Number	66
Neutron Number	33
Relative Atomic Mass	65.944148778 ± 0.0000061 Da
G-Factor	0
Abundance
Radioactivity	☢️ Radioactive
Half Life	95.77 ± 0.23 ms
Spin	0
Quadrupole Moment	0
Discovery Year	1978
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁶⁷As

Mass Number	67
Neutron Number	34
Relative Atomic Mass	66.93925111 ± 0.000000475 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	42.5 ± 1.2 s
Spin	5/2
Quadrupole Moment
Discovery Year	1980
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁶⁸As

Mass Number	68
Neutron Number	35
Relative Atomic Mass	67.936774127 ± 0.000001981 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	151.6 ± 0.8 s
Spin	3
Quadrupole Moment
Discovery Year	1971
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁶⁹As

Mass Number	69
Neutron Number	36
Relative Atomic Mass	68.932246289 ± 0.000034352 Da
G-Factor	0.6488 ± 0.0008
Abundance
Radioactivity	☢️ Radioactive
Half Life	15.2 ± 0.2 m
Spin	5/2
Quadrupole Moment
Discovery Year	1955
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷⁰As

Mass Number	70
Neutron Number	37
Relative Atomic Mass	69.930934642 ± 0.0000015 Da
G-Factor	0.5276 ± 0.000125
Abundance
Radioactivity	☢️ Radioactive
Half Life	52.6 ± 0.3 m
Spin	4
Quadrupole Moment	0.09 ± 0.02
Discovery Year	1950
Parity	+

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷¹As

Mass Number	71
Neutron Number	38
Relative Atomic Mass	70.927113594 ± 0.000004469 Da
G-Factor	0.6692 ± 0.0008
Abundance
Radioactivity	☢️ Radioactive
Half Life	65.3 ± 0.07 h
Spin	5/2
Quadrupole Moment	-0.021 ± 0.006
Discovery Year	1939
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷²As

Mass Number	72
Neutron Number	39
Relative Atomic Mass	71.926752291 ± 0.000004383 Da
G-Factor	-1.0805 ± 0.0003
Abundance
Radioactivity	☢️ Radioactive
Half Life	26 ± 0.1 h
Spin	2
Quadrupole Moment	-0.08 ± 0.02
Discovery Year	1939
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷³As

Mass Number	73
Neutron Number	40
Relative Atomic Mass	72.923829086 ± 0.000004136 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	80.3 ± 0.06 d
Spin	3/2
Quadrupole Moment
Discovery Year	1948
Parity	-

Decay Mode	Intensity
ϵ (electron capture)	100%

⁷⁴As

Mass Number	74
Neutron Number	41
Relative Atomic Mass	73.923928596 ± 0.000001817 Da
G-Factor	-0.798 ± 0.0015
Abundance
Radioactivity	☢️ Radioactive
Half Life	17.77 ± 0.02 d
Spin	2
Quadrupole Moment
Discovery Year	1938
Parity	-

Decay Mode	Intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	66%
β⁻ (β⁻ decay)	34%

⁷⁵As

Mass Number	75
Neutron Number	42
Relative Atomic Mass	74.921594562 ± 0.000000948 Da
G-Factor
Abundance	100
Radioactivity	Stable
Half Life	Not Radioactive ☢️
Spin	3/2
Quadrupole Moment	0.311 ± 0.002
Discovery Year	1920
Parity	-

⁷⁶As

Mass Number	76
Neutron Number	43
Relative Atomic Mass	75.922392011 ± 0.000000951 Da
G-Factor	0.45115 ± 0.0005
Abundance
Radioactivity	☢️ Radioactive
Half Life	1.0933 ± 0.0038 d
Spin	2
Quadrupole Moment
Discovery Year	1934
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁷⁷As

Mass Number	77
Neutron Number	44
Relative Atomic Mass	76.920647555 ± 0.000001816 Da
G-Factor	0.86266666666667 ± 0.00086666666666667
Abundance
Radioactivity	☢️ Radioactive
Half Life	38.79 ± 0.05 h
Spin	3/2
Quadrupole Moment
Discovery Year	1951
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁷⁸As

Mass Number	78
Neutron Number	45
Relative Atomic Mass	77.921827771 ± 0.000010498 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	90.7 ± 0.2 m
Spin	2
Quadrupole Moment
Discovery Year	1937
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁷⁹As

Mass Number	79
Neutron Number	46
Relative Atomic Mass	78.920948419 ± 0.000005716 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	9.01 ± 0.15 m
Spin	3/2
Quadrupole Moment
Discovery Year	1950
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁸⁰As

Mass Number	80
Neutron Number	47
Relative Atomic Mass	79.92247444 ± 0.000003578 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	15.2 ± 0.2 s
Spin	1
Quadrupole Moment
Discovery Year	1954
Parity	+

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁸¹As

Mass Number	81
Neutron Number	48
Relative Atomic Mass	80.922132288 ± 0.000002838 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	33.3 ± 0.8 s
Spin	3/2
Quadrupole Moment
Discovery Year	1960
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁸²As

Mass Number	82
Neutron Number	49
Relative Atomic Mass	81.924738731 ± 0.000004003 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	19.1 ± 0.5 s
Spin	2
Quadrupole Moment
Discovery Year	1968
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁸³As

Mass Number	83
Neutron Number	50
Relative Atomic Mass	82.9252069 ± 0.000003004 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	13.4 ± 0.4 s
Spin	5/2
Quadrupole Moment
Discovery Year	1968
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%

⁸⁴As

Mass Number	84
Neutron Number	51
Relative Atomic Mass	83.92930329 ± 0.000003403 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	3.16 ± 0.58 s
Spin	2
Quadrupole Moment
Discovery Year	1968
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.28%

⁸⁵As

Mass Number	85
Neutron Number	52
Relative Atomic Mass	84.932163658 ± 0.000003304 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	2.022 ± 0.007 s
Spin	5/2
Quadrupole Moment
Discovery Year	1967
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	62.6%

⁸⁶As

Mass Number	86
Neutron Number	53
Relative Atomic Mass	85.936701532 ± 0.000003703 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	945 ± 8 ms
Spin	1
Quadrupole Moment
Discovery Year	1973
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	35.5%
2n (2-neutron emission)

⁸⁷As

Mass Number	87
Neutron Number	54
Relative Atomic Mass	86.940291716 ± 0.000003204 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	492 ± 25 ms
Spin	5/2
Quadrupole Moment
Discovery Year	1970
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	15.4%
2n (2-neutron emission)

⁸⁸As

Mass Number	88
Neutron Number	55
Relative Atomic Mass	87.94584 ± 0.000215 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life	270 ± 150 ms
Spin
Quadrupole Moment
Discovery Year	1994
Parity

Decay Mode	Intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁸⁹As

Mass Number	89
Neutron Number	56
Relative Atomic Mass	88.950048 ± 0.000322 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	5/2
Quadrupole Moment
Discovery Year	1994
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁹⁰As

Mass Number	90
Neutron Number	57
Relative Atomic Mass	89.955995 ± 0.000429 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin
Quadrupole Moment
Discovery Year	1997
Parity

Decay Mode	Intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁹¹As

Mass Number	91
Neutron Number	58
Relative Atomic Mass	90.960816 ± 0.000429 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin	5/2
Quadrupole Moment
Discovery Year	1997
Parity	-

Decay Mode	Intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁹²As

Mass Number	92
Neutron Number	59
Relative Atomic Mass	91.967386 ± 0.000537 Da
G-Factor
Abundance
Radioactivity	☢️ Radioactive
Half Life
Spin
Quadrupole Moment
Discovery Year	1997
Parity

Decay Mode	Intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

History

Greek historian Olympiodorus of Thebes roasted arsenic sulfide and obtained white arsenic during 5th century AD. Albertus Magnus is believed to have been the first to isolate the element from a compound in 1250, by heating soap together with arsenic trisulfide. In 1649, Johann Schröder published two ways of preparing arsenic. From the Latin word arsenicum, Greek arsenikon

Discoverers	Known to the ancients.
Discovery Location
Discovery Year
Etymology (Name Origin)	Greek: arsenikon; Latin: arsenicum, (both names for yellow pigment).
Pronunciation	AR-s'n-ik (English)

Arsenic and its compounds are poisonous

Prawns are known to contain quite high levels of arsenic

Uses

The toxicity of arsenic to insects, bacteria and fungi led to its use as a wood preservative and as insecticides. Arsenic is used in bronzing, pyrotechny, and for hardening and improving the sphericity of shot. Gallium arsenide is a semiconductor used in laser diodes and LEDs. Small amounts of arsenic can be used in lead alloys for ammunition. Many of its compounds are deadly poison and used as weed killer and rat poison. Conducts electricity. Used in semiconductors. Some compounds, called arsenides, are used in the manufacture of paints, wallpapers, and ceramics.

Sources

Found in mispickel (arsenopyrite)

Abundance
Abundance in Earth's crust	1.8 mg/kg
Natural Abundance (Oceans)	0.0037 mg/L
Natural Abundance (Human Body)	0.000005 %
Natural Abundance (Meteor)	0.00018 %
Natural Abundance (Sun)
Abundance in Universe	0.0000008 %

Nuclear Screening Constants

1	s	0.7217
2	p	3.9264
2	s	8.873
3	d	15.6216
3	p	15.1503
3	s	14.4045
4	p	25.5508
4	s	24.056

Also Known As

As
element 33
33As

Translations

Norwegian Bokmålarsen
GermanArsen
Frencharsenic
Italianarsenico
Russianмышьяк
Dutcharseen
Spanisharsénico
Hungarianarzén
Afrikaansarseen
Amharicአርሰኒክ
AragoneseArsén
Arabicزرنيخ
AzerbaijaniArsen
BelarusianМыш'як
Bulgarianарсен
Banglaআর্সেনিক
BretonArsenik
Bosnianarsen
Catalanarsènic
CorsicanArsenicu
Czecharsen
ChuvashМаркăмăш
WelshArsenig
Danisharsen
Greekαρσενικό
Esperantoarseno
EstonianArseen
Basqueartseniko
Persianآرسنیک
Finnisharseeni
FriulianArsenic
Irisharsanaic
Galicianarsénico
GuaraniÑongatuita
ManxArsnick
Hakka ChinesePhî
Hebrewארסן
Hindiआर्सेनिक
Fiji HindiArsenic
CroatianArsen
Haitian CreoleAsenik
Armenianարսեն
Interlinguaarsenico
Indonesianarsen
Idoarseno
Icelandicarsen
Japaneseヒ素
Lojbanarseniko
JavaneseArsenik
Georgianდარიშხანი
Korean비소
Komi-PermyakМышьяк
KomiЕджыд из
Latinarsenicum
LuxembourgishArsen
LigurianArscenigo
LithuanianArsenas
Latvianarsēns
MokshaСуляма
Malayalamആർസെനിക്
Marathiआर्सेनिक
Western MariМышьяк
Malayarsenik
Burmeseစိန်ဖြူ
Low GermanArsen
Norwegian Nynorskarsen
OccitanArsenic
Punjabiਸੰਖੀਆ/ਅਰਸਨਿਕ
PampangaArsenic
Polisharsen
PiedmonteseArsénich
Western Panjabiآرسینک
Pashtoارسینک
Portuguesearsénio
QuechuaArsiniku
Romanianarsen
SardinianArsènicu
Sicilianarsènicu
Serbo-CroatianArsenik
SlovakArzén
SlovenianArzen
AlbanianArseniku
Serbianарсен
Saterland FrisianArsen
Swedisharsenik
SwahiliAsenia
Tamilஆர்சனிக்
Teluguఆర్సెనిక్
TajikАрсен
Thaiสารหนู
TagalogArseniko
Turkisharsenik
Uyghurئارسېن
Ukrainianарсен
Urduزرنیخ
UzbekMargimush
VepsArsen
Vietnameseasen
WarayArsenico
KalmykЦанхорн
Yiddishארסעניק
YorubaArsenic
Chinese砷
English (Canada)Arsenic
English (United Kingdom)arsenic
Chinese (China)砷
Chinese (Simplified)砷
Chinese (Traditional)砷
CebuanoArsenico
Central Kurdishزەڕنیخ
KazakhМышьяк
Northern FrisianArsen
Kannadaಆರ್ಸೆನಿಕ್
Gujaratiસોમલ
Odiaଆର୍ସେନିକ
Scotsarsenic
Newariआर्सेनिक
TatarМышьяк
Cantonese砷
MacedonianАрсен
Min Nan ChinesePhi-sò͘
SomaliAarsenik
Belarusian (Taraskievica orthography)аршэньнік
Literary Chinese砷
Chinese (Hong Kong SAR China)砷
Chinese (Taiwan)砷
KyrgyzМышьяк
cdoPiĕ
FaroeseArsen
Portuguese (Brazil)arsênio
Nepaliआर्सेनिक
Sanskritआर्सेनिक
ErzyaМышьяк
Maltesearseniku
LombardArsénich
AsturianArsénicu
Scottish GaelicArsnaig
Paliआर्सेनिक
Bhojpuriआर्सेनिक
azbآرسنیک
Mongolianхүнцэл
SundaneseArsen
Tibetanབ་བླ།
LimburgishArseen
Lingua Franca Novaarsenico
kbpArɩsɛnɩkɩ
Wu Chinese砷
OsseticМыстымарг
oloMisjakku
AromanianArsenic
KabyleIhiǧǧ
Moroccan Arabicزرنيخ
Egyptian Arabicزرنيخ
BikolArseniko
CornishArsenik
MinangkabauArsen
BalineseArsenik
GandaAseniki
Sindhiآرسينڪ
ZuluIsAsumu
MalagasyArsenika
blkအာသဲန်းနေက်

Arsenic on ChemicalAid

Australian Educational Vocabulary ID	scot/1661
BNCF Thesaurus ID	25597
Banglapedia ID (Bengali)	আর্সেনিক
Bibliothèque nationale de France ID	11971740q
Brockhaus Enzyklopädie online ID	arsen
CAB ID	43961
CA PROP 65 ID	arsenic
CAS Registry Number	7440-38-2
ChEBI ID	27563
ChemSpider ID	4514330
DSSTOX compound identifier	DTXCID703886
DSSTox substance ID	DTXSID4023886
De Agostini ID	arsènico+(sostantivo)
Den Store Danske ID	arsen
ECHA Substance Infocard ID	100.028.316
Encyclopedia of China ID (Second Edition)	229020
Encyclopædia Universalis ID	arsenic-toxicologie
Encyclopædia Universalis ID	arsenic
Encyclopédie berbère article ID	2598
Freebase ID	/m/027rq1r
French Vikidia ID	Arsenic
GND ID	4003041-6
Gran Enciclopèdia Catalana ID	0005554
Great Russian Encyclopedia Online ID	2241159
Gujarati Vishwakosh entry	આર્સેનિક
HCIS ID	287
HSDB ID	509
ICSC ID	0013
InChI	InChI=1S/As
InChIKey	RQNWIZPPADIBDY-UHFFFAOYSA-N
KBpedia ID	Arsenic
KEGG ID	C06269
Krugosvet article	nauka_i_tehnika/himiya/MISHYAK.html
Krugosvet article	meditsina/myshyak-i-zdorove-cheloveka
Library of Congress authority ID	sh85007449
LiverTox ID	Arsenic
MeSH descriptor ID	D001151
NALT ID	12370
NDF-RT ID	N0000022206
NDL Authority ID	00563271
NE.se ID	arsenik
NKCR AUT ID	ph138910
National Library of Israel J9U ID	987007294803405171
National Library of Latvia ID	000306779
OmegaWiki Defined Meaning	255
OpenAlex ID	C502230775
OpenAlex ID	C2910930242
PACTOLS thesaurus ID	pcrt5mFxzmQ9rX
PM20 ware ID	142006
PSH ID	5803
PubChem CID	5359596
Quora topic ID	Arsenic-As
RxNorm ID	1111
Spanish Cultural Heritage thesauri ID	materias/1009757
Store medisinske leksikon ID	arsen
Store norske leksikon ID	arsen
Treccani ID	arsenico
U.S. National Archives Identifier	10637420
UK Archival Thesaurus ID	f2/mt225/4347/7620
UMLS CUI	C0003818
UNII	N712M78A8G
USGS Thesaurus ID	1396
WikiSkripta ID	32671
Wolfram Language entity code	Entity["Mineral", "Arsenic"]
WordNet 3.1 Synset ID	14653327-n
YSO ID	9329
ZVG number	8280

Arsenic (As)

Physical Properties

Chemical Properties

Other

Isotopes of Arsenic

60As

61As

62As

63As

64As

65As

66As

67As

68As

69As

70As

71As

72As

73As

74As

75As

76As

77As

78As

79As

80As

81As

82As

83As

84As

85As

86As

87As

88As

89As

90As

91As

92As