Antimon (Sb)

chemical element with symbol Sb and atomic number of 51

Atomic Number	51
Atomic Weight	121.76
mass number	121

Group	15
Period	5
Block	p

proton	51 p⁺
neutron	70 n⁰
electron	51 e^-

Physical Property

Atomic Radius	145 pm 246 pm
molar volume	18,4 cm³/mol
Covalent Radius	140 pm 133 pm 127 pm 140 pm 139 pm
Metallic Radius	139 pm 166 pm
ionic radius	76 pm 80 pm 76 pm 60 pm
Crystal Radius	90 pm 94 pm 90 pm 74 pm
Van der Waals radius	220 pm 435 pm 206 pm 252 pm 206 pm 442 pm
density	6,68 g/cm³ 6 530 kg/m³

Chemical Property

{ERROR}

energy

proton affinity
electron affinity	1,046 eV/particle
ionization energy	8,608389 eV/particle 16,63 eV/particle 25,3235 eV/particle 43,8 eV/particle 55 eV/particle 99,51 eV/particle 117 eV/particle 139 eV/particle 162 eV/particle 185 eV/particle 214 eV/particle 238 eV/particle 265 eV/particle 292 eV/particle 317 eV/particle 420 eV/particle 447 eV/particle 479 eV/particle 510 eV/particle 552 eV/particle 584 eV/particle 657 eV/particle 693,26 eV/particle 1 214 eV/particle 1 285 eV/particle 1 360 eV/particle 1 441 eV/particle 1 518 eV/particle 1 606 eV/particle 1 698 eV/particle 1 781 eV/particle 1 869 eV/particle 1 954 eV/particle 2 190 eV/particle 2 266 eV/particle 2 349 eV/particle 2 428 eV/particle 2 567 eV/particle 2 654 eV/particle 2 815 eV/particle 2 900 eV/particle 6 714 eV/particle 6 929 eV/particle 7 167 eV/particle 7 390 eV/particle 7 887 eV/particle 8 140 eV/particle 8 455 eV/particle 8 669,48 eV/particle 35 710,03 eV/particle 36 668,05 eV/particle

enthalpy of vaporization	195,2 kJ/mol
enthalpy of fusion	20,08 kJ/mol
standard enthalpy of formation	264,4 kJ/mol
electron

electron shell	2, 8, 18, 18, 5

valence electron	5 ⓘ

electron configuration	[Kr] 4d¹⁰ 5s² 5p³ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 4d¹⁰ 5s² 5p³

oxidation number	-3, -2, -1, 0, 1, 2, 3, 4, 5
electronegativity	11,74 eV/particle 0.1918774 2.05
Electrophilicity Index	1,540637934707554 eV/particle
fundamental state of matter

phase of matter
gaseous state of matter
Boiling Point	1 860,15 K
Melting Point	903,778 K
critical pressure
critical temperature
triple point
appearance
color	Black #ff1493 #9e63b5 #9e63b5
appearance	silvery lustrous gray
refractive index
thermodynamic material property
Thermal Conductivity	24,43 W/(m K)
thermal expansion	0,000011 1/K
molar heat capacity	25,23 J/(mol K)
Specific Heat Capacity	0,207 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
electrical conductivity	2,5 MS/m
electrical resistivity	0,0000004 Ω*m
superconductivity
magnetism
type	diamagnetic
magnetic susceptibility (Mass)	−0,0000000109 m³/Kg
magnetic susceptibility (Molar)	−0,000000001327 m³/mol
magnetic susceptibility (Volume)	−0,000073
magnetic ordering
Curie temperature
Néel temperature
structure
Crystal Structure	{ERROR}
lattice constant	4,51 Å
Lattice Angles	π/2, π/2, 2 π/3
mechanical property
hardness	294 MPa 3 MPa
bulk modulus	42 GPa
shear modulus	20 GPa
Young's modulus	55 GPa
Poisson's ratio
speed of sound	3 420 m/s
classification
Category	Actinides, Metalloids
CAS Group	VB
IUPAC Group	VA
Glawe Number	91
Mendeleev Number	96
Pettifor Number	88
Geochemical Class	semi-volatile
Goldschmidt classification	chalcophile

other

Gas Basicity
polarizability	43 ± 2 a₀
C6 Dispersion Coefficient	492 a₀ 504 a₀
allotrope	White Antimony, Yellow Antimony, Black Antimony
Neutron cross section	5,4
Neutron Mass Absorption	0,0016
quantum number	4S3/2
space group	166 (R_3m)

Isotopes of Antimony

Stable Isotopes	2
Unstable Isotopes	39
Natural Isotopes	2

¹⁰²Sb

mass number	102
neutron number	51
Relative Atomic Mass	101,945142 ± 0,000429 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention
parity

decay mode	intensity
p (proton emission)

¹⁰³Sb

mass number	103
neutron number	52
Relative Atomic Mass	102,939162 ± 0,000322 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life
spin	5/2
nuclear quadrupole moment
time of discovery or invention	2010
parity	+

decay mode	intensity
p (proton emission)

¹⁰⁴Sb

mass number	104
neutron number	53
Relative Atomic Mass	103,936344 ± 0,000109 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	470 ± 130 ms
spin
nuclear quadrupole moment
time of discovery or invention	1995
parity

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
β⁺ p (β⁺-delayed proton emission)	7%
p (proton emission)	7%
α (α emission)

¹⁰⁵Sb

mass number	105
neutron number	54
Relative Atomic Mass	104,931276547 ± 0,000023431 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	1,12 ± 0,16 s
spin	5/2
nuclear quadrupole moment
time of discovery or invention	1994
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
p (proton emission)	0.1%
β⁺ p (β⁺-delayed proton emission)

¹⁰⁶Sb

mass number	106
neutron number	55
Relative Atomic Mass	105,928637979 ± 0,000008 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	600 ± 200 ms
spin	2
nuclear quadrupole moment
time of discovery or invention	1981
parity	+

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

¹⁰⁷Sb

mass number	107
neutron number	56
Relative Atomic Mass	106,924150621 ± 0,000004452 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	4 ± 0,2 s
spin	5/2
nuclear quadrupole moment
time of discovery or invention	1994
parity	+

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

¹⁰⁸Sb

mass number	108
neutron number	57
Relative Atomic Mass	107,922226731 ± 0,0000059 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	7,4 ± 0,3 s
spin	4
nuclear quadrupole moment
time of discovery or invention	1976
parity	+

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

¹⁰⁹Sb

mass number	109
neutron number	58
Relative Atomic Mass	108,918141203 ± 0,000005652 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	17,2 ± 0,5 s
spin	5/2
nuclear quadrupole moment
time of discovery or invention	1976
parity	+

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

¹¹⁰Sb

mass number	110
neutron number	59
Relative Atomic Mass	109,916854283 ± 0,0000064 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	23,6 ± 0,3 s
spin	3
nuclear quadrupole moment
time of discovery or invention	1972
parity	+

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

¹¹¹Sb

mass number	111
neutron number	60
Relative Atomic Mass	110,913218187 ± 0,0000095 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	75 ± 1 s
spin	5/2
nuclear quadrupole moment
time of discovery or invention	1972
parity	+

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

¹¹²Sb

mass number	112
neutron number	61
Relative Atomic Mass	111,912399903 ± 0,00001914 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	53,5 ± 0,6 s
spin	3
nuclear quadrupole moment
time of discovery or invention	1959
parity	+

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

¹¹³Sb

mass number	113
neutron number	62
Relative Atomic Mass	112,909374664 ± 0,000018457 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	6,67 ± 0,07 m
spin	5/2
nuclear quadrupole moment
time of discovery or invention	1958
parity	+

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

¹¹⁴Sb

mass number	114
neutron number	63
Relative Atomic Mass	113,909289155 ± 0,000021226 Da
g-factor	0,57333333333333 ± 0,026666666666667
natural abundance
radioactivity	☢️ radioactive element
half-life	3,49 ± 0,03 m
spin	3
nuclear quadrupole moment
time of discovery or invention	1959
parity	+

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

¹¹⁵Sb

mass number	115
neutron number	64
Relative Atomic Mass	114,906598 ± 0,000017203 Da
g-factor	1,384 ± 0,004
natural abundance
radioactivity	☢️ radioactive element
half-life	32,1 ± 0,3 m
spin	5/2
nuclear quadrupole moment
time of discovery or invention	1958
parity	+

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

¹¹⁶Sb

mass number	116
neutron number	65
Relative Atomic Mass	115,906792732 ± 0,000005533 Da
g-factor	0,905 ± 0,003
natural abundance
radioactivity	☢️ radioactive element
half-life	15,8 ± 0,8 m
spin	3
nuclear quadrupole moment
time of discovery or invention	1949
parity	+

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

¹¹⁷Sb

mass number	117
neutron number	66
Relative Atomic Mass	116,904841519 ± 0,000009057 Da
g-factor	1,372 ± 0,024
natural abundance
radioactivity	☢️ radioactive element
half-life	2,97 ± 0,02 h
spin	5/2
nuclear quadrupole moment	0,2 ± 1,2
time of discovery or invention	1947
parity	+

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

¹¹⁸Sb

mass number	118
neutron number	67
Relative Atomic Mass	117,905532194 ± 0,000003237 Da
g-factor	2,46 ± 0,07
natural abundance
radioactivity	☢️ radioactive element
half-life	3,6 ± 0,1 m
spin	1
nuclear quadrupole moment
time of discovery or invention	1947
parity	+

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

¹¹⁹Sb

mass number	119
neutron number	68
Relative Atomic Mass	118,903944062 ± 0,000007512 Da
g-factor	1,38 ± 0,004
natural abundance
radioactivity	☢️ radioactive element
half-life	38,19 ± 0,22 h
spin	5/2
nuclear quadrupole moment
time of discovery or invention	1947
parity	+

decay mode	intensity
ϵ (electron capture)	100%

¹²⁰Sb

mass number	120
neutron number	69
Relative Atomic Mass	119,905080308 ± 0,000007728 Da
g-factor	2,3 ± 0,2
natural abundance
radioactivity	☢️ radioactive element
half-life	15,89 ± 0,04 m
spin	1
nuclear quadrupole moment
time of discovery or invention	1937
parity	+

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

¹²¹Sb

mass number	121
neutron number	70
Relative Atomic Mass	120,903811353 ± 0,00000269 Da
g-factor
natural abundance	57,21 ± 0,05
radioactivity	stable isotope
half-life	Not Radioactive ☢️
spin	5/2
nuclear quadrupole moment	−0,543 ± 0,011
time of discovery or invention	1922
parity	+

¹²²Sb

mass number	122
neutron number	71
Relative Atomic Mass	121,905169335 ± 0,000002687 Da
g-factor	−0,95 ± 0,01
natural abundance
radioactivity	☢️ radioactive element
half-life	2,7238 ± 0,0002 d
spin	2
nuclear quadrupole moment	1,28 ± 0,08
time of discovery or invention	1939
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	97.59%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	2.41%

¹²³Sb

mass number	123
neutron number	72
Relative Atomic Mass	122,904215292 ± 0,000001456 Da
g-factor
natural abundance	42,79 ± 0,05
radioactivity	stable isotope
half-life	Not Radioactive ☢️
spin	7/2
nuclear quadrupole moment	−0,692 ± 0,014
time of discovery or invention	1922
parity	+

¹²⁴Sb

mass number	124
neutron number	73
Relative Atomic Mass	123,905937065 ± 0,000001457 Da
g-factor	0,4 ± 0,0066666666666667
natural abundance
radioactivity	☢️ radioactive element
half-life	60,2 ± 0,03 d
spin	3
nuclear quadrupole moment	2,8 ± 0,2
time of discovery or invention	1939
parity	-

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

¹²⁵Sb

mass number	125
neutron number	74
Relative Atomic Mass	124,905254264 ± 0,0000027 Da
g-factor	0,75142857142857 ± 0,011428571428571
natural abundance
radioactivity	☢️ radioactive element
half-life	2,7576 ± 0,0011 y
spin	7/2
nuclear quadrupole moment
time of discovery or invention	1951
parity	+

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

¹²⁶Sb

mass number	126
neutron number	75
Relative Atomic Mass	125,907253158 ± 0,000034189 Da
g-factor	0,16 ± 0,00875
natural abundance
radioactivity	☢️ radioactive element
half-life	12,35 ± 0,06 d
spin	8
nuclear quadrupole moment
time of discovery or invention	1956
parity	-

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

¹²⁷Sb

mass number	127
neutron number	76
Relative Atomic Mass	126,906925557 ± 0,000005457 Da
g-factor	0,77142857142857 ± 0,011428571428571
natural abundance
radioactivity	☢️ radioactive element
half-life	3,85 ± 0,05 d
spin	7/2
nuclear quadrupole moment
time of discovery or invention	1939
parity	+

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

¹²⁸Sb

mass number	128
neutron number	77
Relative Atomic Mass	127,909146121 ± 0,000020169 Da
g-factor	0,1625 ± 0,025
natural abundance
radioactivity	☢️ radioactive element
half-life	9,05 ± 0,04 h
spin	8
nuclear quadrupole moment
time of discovery or invention	1956
parity	-

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

¹²⁹Sb

mass number	129
neutron number	78
Relative Atomic Mass	128,909146623 ± 0,000022786 Da
g-factor	0,79714285714286 ± 0,011428571428571
natural abundance
radioactivity	☢️ radioactive element
half-life	4,366 ± 0,026 h
spin	7/2
nuclear quadrupole moment
time of discovery or invention	1939
parity	+

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

¹³⁰Sb

mass number	130
neutron number	79
Relative Atomic Mass	129,911662686 ± 0,000015257 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	39,5 ± 0,8 m
spin	8
nuclear quadrupole moment
time of discovery or invention	1962
parity	-

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

¹³¹Sb

mass number	131
neutron number	80
Relative Atomic Mass	130,911989339 ± 0,000002236 Da
g-factor	0,82571428571429 ± 0,011428571428571
natural abundance
radioactivity	☢️ radioactive element
half-life	23,03 ± 0,04 m
spin	7/2
nuclear quadrupole moment
time of discovery or invention	1956
parity	+

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

¹³²Sb

mass number	132
neutron number	81
Relative Atomic Mass	131,914508013 ± 0,000002648 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	2,79 ± 0,07 m
spin	4
nuclear quadrupole moment
time of discovery or invention	1956
parity

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

¹³³Sb

mass number	133
neutron number	82
Relative Atomic Mass	132,915272128 ± 0,000003357 Da
g-factor	0,85714285714286 ± 0,011428571428571
natural abundance
radioactivity	☢️ radioactive element
half-life	2,34 ± 0,05 m
spin	7/2
nuclear quadrupole moment
time of discovery or invention	1966
parity	+

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

¹³⁴Sb

mass number	134
neutron number	83
Relative Atomic Mass	133,920537334 ± 0,0000033 Da
g-factor	0
natural abundance
radioactivity	☢️ radioactive element
half-life	674 ± 4 ms
spin	0
nuclear quadrupole moment	0
time of discovery or invention	1967
parity	-

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

¹³⁵Sb

mass number	135
neutron number	84
Relative Atomic Mass	134,925184354 ± 0,000002834 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	1,668 ± 0,009 s
spin	7/2
nuclear quadrupole moment
time of discovery or invention	1964
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	19.1%

¹³⁶Sb

mass number	136
neutron number	85
Relative Atomic Mass	135,930749009 ± 0,000006258 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	923 ± 14 ms
spin	1
nuclear quadrupole moment
time of discovery or invention	1976
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	24.7%
2n (2-neutron emission)	0.14%

¹³⁷Sb

mass number	137
neutron number	86
Relative Atomic Mass	136,935522519 ± 0,000056 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	497 ± 21 ms
spin	7/2
nuclear quadrupole moment
time of discovery or invention	1994
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	49%
2n (2-neutron emission)

¹³⁸Sb

mass number	138
neutron number	87
Relative Atomic Mass	137,941331 ± 0,000322 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	333 ± 7 ms
spin	3
nuclear quadrupole moment
time of discovery or invention	1994
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	72%
2n (2-neutron emission)

¹³⁹Sb

mass number	139
neutron number	88
Relative Atomic Mass	138,946269 ± 0,000429 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	182 ± 9 ms
spin	7/2
nuclear quadrupole moment
time of discovery or invention	1994
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	90%
2n (2-neutron emission)

¹⁴⁰Sb

mass number	140
neutron number	89
Relative Atomic Mass	139,952345 ± 0,000644 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	170 ± 6 ms
spin	3
nuclear quadrupole moment
time of discovery or invention	2010
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	23%
2n (2-neutron emission)	7.6%

¹⁴¹Sb

mass number	141
neutron number	90
Relative Atomic Mass	140,957552 ± 0,000537 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	103 ± 29 ms
spin	7/2
nuclear quadrupole moment
time of discovery or invention	2018
parity	+

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

¹⁴²Sb

mass number	142
neutron number	91
Relative Atomic Mass	141,963918 ± 0,000322 Da
g-factor
natural abundance
radioactivity	☢️ radioactive element
half-life	80 ± 50 ms
spin
nuclear quadrupole moment
time of discovery or invention	2018
parity

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

history

discoverer or inventor	Known to the ancients.
location of discovery
time of discovery or invention
etymology	Greek: anti and monos (not alone); symbol from mineral stibnite.
pronunciation	AN-teh-MOH-ni (engelsk)

source

Abundance
Abundance in Earth's crust	0,2 mg/kg
natural abundance (ocean)	0,00024 mg/L
natural abundance (human body)
natural abundance (meteoroid)	0,000012 %
natural abundance (Sun)	0,0000001 %
Abundance in Universe	0,00000004 %

Nuclear Screening Constants

1	s	1.0256
2	p	4.1274
2	s	13.4046
3	d	14.2002
3	p	17.8161
3	s	17.7909
4	d	32.0256
4	p	28.8188
4	s	27.4564
5	p	41.0055
5	s	39.389

Antimon on ChemicalAid

Antimon (Sb)

Physical Property

Chemical Property

other

Isotopes of Antimony

102Sb

103Sb

104Sb

105Sb

106Sb

107Sb

108Sb

109Sb

110Sb

111Sb

112Sb

113Sb

114Sb

115Sb

116Sb

117Sb

118Sb

119Sb

120Sb

121Sb

122Sb

123Sb

124Sb

125Sb

126Sb

127Sb

128Sb

129Sb

130Sb

131Sb

132Sb

133Sb

134Sb

135Sb

136Sb

137Sb

138Sb

139Sb

140Sb

141Sb

142Sb

history

source

Nuclear Screening Constants

¹⁰²Sb

¹⁰³Sb

¹⁰⁴Sb

¹⁰⁵Sb

¹⁰⁶Sb

¹⁰⁷Sb

¹⁰⁸Sb

¹⁰⁹Sb

¹¹⁰Sb

¹¹¹Sb

¹¹²Sb

¹¹³Sb

¹¹⁴Sb

¹¹⁵Sb

¹¹⁶Sb

¹¹⁷Sb

¹¹⁸Sb

¹¹⁹Sb

¹²⁰Sb

¹²¹Sb

¹²²Sb

¹²³Sb

¹²⁴Sb

¹²⁵Sb

¹²⁶Sb

¹²⁷Sb

¹²⁸Sb

¹²⁹Sb

¹³⁰Sb

¹³¹Sb

¹³²Sb

¹³³Sb

¹³⁴Sb

¹³⁵Sb

¹³⁶Sb

¹³⁷Sb

¹³⁸Sb

¹³⁹Sb

¹⁴⁰Sb

¹⁴¹Sb

¹⁴²Sb