Arsen (As)

hemijski element sa simbolom As i atomskim brojem 33

Atomic Number	33
Atomic Weight	74.921595
Maseni broj	75

Group	15
Period	4
Block	p

Proton	33 p⁺
Neutron	42 n⁰
Elektron	33 e^-

Animated Bohrov model atoma of As (Arsen)

Physical Property

Atomski Radijus	115 pm 231 pm
Molarni volumen	13,1 cm³/mol
covalent radius	121 pm 114 pm 106 pm 126 pm 119 pm
Metallic Radius	121 pm 148 pm
Ionski radijus	58 pm 33,5 pm 46 pm
Crystal Radius	72 pm 47,5 pm 60 pm
Van der Waalsov radijus	205 pm 185 pm 415 pm 185 pm 236 pm 423 pm
gustoća	5,75 g/cm³ 5.220 kg/m³

Chemical Property

{ERROR}

energija

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

Toplota isparavanja	32,4 kJ/mol
toplota topljenja
standard enthalpy of formation	302,5 kJ/mol
Elektron

electron shell	2, 8, 18, 5

Valentni elektron	5 ⓘ

electron configuration	[Ar] 3d¹⁰ 4s² 4p³ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p³

oksidacijsko stanje	-3, -2, -1, 0, 1, 2, 3, 4, 5
Elektronegativnost	13,08 eV/particle 0.2068208 2.18
Electrophilicity Index	1,5610969532554257 eV/particle
fundamental state of matter

agregatno stanje
gaseous state of matter
Boiling Point	889,15 K
Melting Point	1.090,15 K
critical pressure	22,3 MPa
Kritična temperatura	1.673,15 K
Trojna tačka	1.090,15 K 3.700 kPa
appearance
boja	Black #ff1493 #bd80e3 #bd80e3
appearance	metallic grey
Indeks prelamanja	1,001552
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity	24,64 J/(mol K)
Specific Heat Capacity	0,329 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
Specifična električna provodljivost	3,3 MS/m
electrical resistivity	0,0000003 Ω*m
Superprovodljivost
Magnetizam
type	diamagnetic
magnetic susceptibility (Mass)	-0,0000000039 m³/Kg
magnetic susceptibility (Molar)	-0,000000000292 m³/mol
magnetic susceptibility (Volume)	-0,0000223
magnetic ordering
Kirijeva tačka
Néel temperature
struktura
Crystal Structure	{ERROR}
lattice constant	4,13 Å
Lattice Angles	π/2, π/2, 2 π/3
mechanical property
Tvrdoća	1.440 MPa 3,5 MPa
bulk modulus	22 GPa
shear modulus
Young's modulus	8 GPa
Poisson's ratio
Brzina zvuka
klasifikacija
Category	Actinides, Metalloids
CAS Group	VB
IUPAC Group	VA
Glawe Number	90
Mendeleev Number	95
Pettifor Number	89
Geochemical Class	semi-volatile
Goldschmidt classification	chalcophile

other

Gas Basicity
polarizability	30 ± 1 a₀
C6 Dispersion Coefficient	246 a₀ 260 a₀
allotrope	Yellow Arsenic, Black Arsenic, Gray Arsenic
Neutron cross section	4,2
Neutron Mass Absorption	0,002
Kvantni brojevi	4S3/2
space group	166 (R_3m)

Isotopes of Arsenic

Stable Isotopes	1
Unstable Isotopes	32
Natural Isotopes	1

⁶⁰As

Maseni broj	60
broj neutrona	27
Relative Atomic Mass	59,993945 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	5
nuclear quadrupole moment
datum otkrića
parity	+

decay mode	intensity
p (proton emission)

⁶¹As

Maseni broj	61
broj neutrona	28
Relative Atomic Mass	60,981535 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	3/2
nuclear quadrupole moment
datum otkrića
parity	-

decay mode	intensity
p (proton emission)

⁶²As

Maseni broj	62
broj neutrona	29
Relative Atomic Mass	61,973784 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	1
nuclear quadrupole moment
datum otkrića
parity	+

decay mode	intensity
p (proton emission)

⁶³As

Maseni broj	63
broj neutrona	30
Relative Atomic Mass	62,964036 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	3/2
nuclear quadrupole moment
datum otkrića
parity	-

decay mode	intensity
p (proton emission)

⁶⁴As

Maseni broj	64
broj neutrona	31
Relative Atomic Mass	63,95756 ± 0,000218 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	69 ± 1,4 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1995
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)

⁶⁵As

Maseni broj	65
broj neutrona	32
Relative Atomic Mass	64,949611 ± 0,000091 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	130,3 ± 0,6 ms
spin	3/2
nuclear quadrupole moment
datum otkrića	1991
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)

⁶⁶As

Maseni broj	66
broj neutrona	33
Relative Atomic Mass	65,944148778 ± 0,0000061 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	95,77 ± 0,23 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1978
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁶⁷As

Maseni broj	67
broj neutrona	34
Relative Atomic Mass	66,93925111 ± 0,000000475 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	42,5 ± 1,2 s
spin	5/2
nuclear quadrupole moment
datum otkrića	1980
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁶⁸As

Maseni broj	68
broj neutrona	35
Relative Atomic Mass	67,936774127 ± 0,000001981 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	151,6 ± 0,8 s
spin	3
nuclear quadrupole moment
datum otkrića	1971
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁶⁹As

Maseni broj	69
broj neutrona	36
Relative Atomic Mass	68,932246289 ± 0,000034352 Da
g-factor	0,6488 ± 0,0008
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	15,2 ± 0,2 m
spin	5/2
nuclear quadrupole moment
datum otkrića	1955
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷⁰As

Maseni broj	70
broj neutrona	37
Relative Atomic Mass	69,930934642 ± 0,0000015 Da
g-factor	0,5276 ± 0,000125
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	52,6 ± 0,3 m
spin	4
nuclear quadrupole moment	0,09 ± 0,02
datum otkrića	1950
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷¹As

Maseni broj	71
broj neutrona	38
Relative Atomic Mass	70,927113594 ± 0,000004469 Da
g-factor	0,6692 ± 0,0008
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	65,3 ± 0,07 h
spin	5/2
nuclear quadrupole moment	-0,021 ± 0,006
datum otkrića	1939
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷²As

Maseni broj	72
broj neutrona	39
Relative Atomic Mass	71,926752291 ± 0,000004383 Da
g-factor	-1,0805 ± 0,0003
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	26 ± 0,1 h
spin	2
nuclear quadrupole moment	-0,08 ± 0,02
datum otkrića	1939
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁷³As

Maseni broj	73
broj neutrona	40
Relative Atomic Mass	72,923829086 ± 0,000004136 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	80,3 ± 0,06 d
spin	3/2
nuclear quadrupole moment
datum otkrića	1948
parity	-

decay mode	intensity
ϵ (electron capture)	100%

⁷⁴As

Maseni broj	74
broj neutrona	41
Relative Atomic Mass	73,923928596 ± 0,000001817 Da
g-factor	-0,798 ± 0,0015
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	17,77 ± 0,02 d
spin	2
nuclear quadrupole moment
datum otkrića	1938
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	66%
β⁻ (β⁻ decay)	34%

⁷⁵As

Maseni broj	75
broj neutrona	42
Relative Atomic Mass	74,921594562 ± 0,000000948 Da
g-factor
natural abundance	100
Radioaktivnost	stable isotope
Vrijeme poluraspada	Not Radioactive ☢️
spin	3/2
nuclear quadrupole moment	0,311 ± 0,002
datum otkrića	1920
parity	-

⁷⁶As

Maseni broj	76
broj neutrona	43
Relative Atomic Mass	75,922392011 ± 0,000000951 Da
g-factor	0,45115 ± 0,0005
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	1,0933 ± 0,0038 d
spin	2
nuclear quadrupole moment
datum otkrića	1934
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁷⁷As

Maseni broj	77
broj neutrona	44
Relative Atomic Mass	76,920647555 ± 0,000001816 Da
g-factor	0,86266666666667 ± 0,00086666666666667
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	38,79 ± 0,05 h
spin	3/2
nuclear quadrupole moment
datum otkrića	1951
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁷⁸As

Maseni broj	78
broj neutrona	45
Relative Atomic Mass	77,921827771 ± 0,000010498 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	90,7 ± 0,2 m
spin	2
nuclear quadrupole moment
datum otkrića	1937
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁷⁹As

Maseni broj	79
broj neutrona	46
Relative Atomic Mass	78,920948419 ± 0,000005716 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	9,01 ± 0,15 m
spin	3/2
nuclear quadrupole moment
datum otkrića	1950
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁸⁰As

Maseni broj	80
broj neutrona	47
Relative Atomic Mass	79,92247444 ± 0,000003578 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	15,2 ± 0,2 s
spin	1
nuclear quadrupole moment
datum otkrića	1954
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁸¹As

Maseni broj	81
broj neutrona	48
Relative Atomic Mass	80,922132288 ± 0,000002838 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	33,3 ± 0,8 s
spin	3/2
nuclear quadrupole moment
datum otkrića	1960
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁸²As

Maseni broj	82
broj neutrona	49
Relative Atomic Mass	81,924738731 ± 0,000004003 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	19,1 ± 0,5 s
spin	2
nuclear quadrupole moment
datum otkrića	1968
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁸³As

Maseni broj	83
broj neutrona	50
Relative Atomic Mass	82,9252069 ± 0,000003004 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	13,4 ± 0,4 s
spin	5/2
nuclear quadrupole moment
datum otkrića	1968
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%

⁸⁴As

Maseni broj	84
broj neutrona	51
Relative Atomic Mass	83,92930329 ± 0,000003403 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	3,16 ± 0,58 s
spin	2
nuclear quadrupole moment
datum otkrića	1968
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.28%

⁸⁵As

Maseni broj	85
broj neutrona	52
Relative Atomic Mass	84,932163658 ± 0,000003304 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	2,022 ± 0,007 s
spin	5/2
nuclear quadrupole moment
datum otkrića	1967
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	62.6%

⁸⁶As

Maseni broj	86
broj neutrona	53
Relative Atomic Mass	85,936701532 ± 0,000003703 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	945 ± 8 ms
spin	1
nuclear quadrupole moment
datum otkrića	1973
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	35.5%
2n (2-neutron emission)

⁸⁷As

Maseni broj	87
broj neutrona	54
Relative Atomic Mass	86,940291716 ± 0,000003204 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	492 ± 25 ms
spin	5/2
nuclear quadrupole moment
datum otkrića	1970
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	15.4%
2n (2-neutron emission)

⁸⁸As

Maseni broj	88
broj neutrona	55
Relative Atomic Mass	87,94584 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	270 ± 150 ms
spin
nuclear quadrupole moment
datum otkrića	1994
parity

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

⁸⁹As

Maseni broj	89
broj neutrona	56
Relative Atomic Mass	88,950048 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	5/2
nuclear quadrupole moment
datum otkrića	1994
parity	-

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁹⁰As

Maseni broj	90
broj neutrona	57
Relative Atomic Mass	89,955995 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
datum otkrića	1997
parity

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁹¹As

Maseni broj	91
broj neutrona	58
Relative Atomic Mass	90,960816 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	5/2
nuclear quadrupole moment
datum otkrića	1997
parity	-

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁹²As

Maseni broj	92
broj neutrona	59
Relative Atomic Mass	91,967386 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
datum otkrića	1997
parity

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

historija

otkrivač ili izumitelj	Known to the ancients.
mjesto otkrića
datum otkrića
Etimologija	Greek: arsenikon; Latin: arsenicum, (both names for yellow pigment).
pronunciation	AR-s'n-ik (engleski)

izvor

Abundance
Abundance in Earth's crust	1,8 mg/kg
natural abundance (okean)	0,0037 mg/L
natural abundance (ljudsko tijelo)	0,000005 %
natural abundance (Meteoroidi)	0,00018 %
natural abundance (Sunce)
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

Arsen on ChemicalAid

Arsen (As)

Physical Property

Chemical Property

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

historija

izvor

Nuclear Screening Constants

⁶⁰As

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⁷⁶As

⁷⁷As

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⁸⁰As

⁸¹As

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⁸⁴As

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⁸⁸As

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