Sb - Antimony

An semi-metal. 

Atomic number - 51 Density g/mL 6 .68
Atomic weight u 121 .75 Melting point K 904
Bonding radius A 1 .4 Boiling point K 1860
Atomic radius A 1 .53 Heat of vaporization kJ/mol 77 .14
Ionization Potential V 8 .641 Heat of fusion kJ/mol 19 .87
Electronegativity - 2 .05 Specific heat J/gK 0 .21
The oxide is mildly acidic.
Crystal are rhombohedral.

Electron config. : [Kr] 4d10 5s25p3


Isotopes of Sb: Click mass number for decay process, product for element page.


104
0.52 sec
EC,12.200 MeV
Sn-104
103.93633
105
1.3 sec
EC,3.450 MeV
Sn-105
104.93140
107

a/EC,7.900
In-103/Sn-107
106.92410
108
7.0 sec
EC,9.510 MeV
Sn-108
107.92215
109
17.0 sec
EC,6.380 MeV
Sn-109
108.91813
110
23.0 sec
EC,8.300 MeV
Sn-110
109.91676
111
75 sec
EC,5.100 MeV
Sn-111
110.91321
112
51.4 sec
EC,7.055 MeV
Sn-112
111.91239
113
6.67 min
EC,3.905 MeV
Sn-113
112.90936
114
3.49 min
EC,5.880 MeV
Sn-114
113.90909
115
32.1 min
EC,3.030 MeV
Sn-115
114.90659
116
15.8 min
EC,4.707 MeV
Sn-116
115.90679
117
2.80 hr
EC,1.757 MeV
Sn-117
116.90484
118
3.6 min
EC,3.657 MeV
Sn-118
117.90553
119
38.19 hr
EC,2.675 MeV
Sn-119
118.90394
120
15.89 min
EC,2.681 MeV
Sn-120
119.90507
120a
5.76 da
EC,2.681 MeV
Sn-120
119.90507
121 57.21%

Stable

120.90382
122
2.7238 da
B-/EC,1.979
Te-122/Sn-122
121.90517
123 42.79%

Stable

122.90421
124
60.20 da
B-,2.905 MeV
Te-124
123.90593
124a
93 sec
B-,2.916 MeV
Te-124
123.90594
125
2.7582 yr
B-,2.392 MeV
Te-125
124.90524
126
12.46 da
B-,3.670 MeV
Te-126
125.90724
126a
19.15 min
B-,3.688 MeV
Te-126
125.90726
127
3.85 da
B-,1.581 MeV
Te-127
126.90691
128
9.01 hr
B-,4.380 MeV
Te-128
127.90916
129
4.40 hr
B-,2.380 MeV
Te-129
128.90915
130
39.5 min
B-,4.960 MeV
Te-130
129.91155
131
23.03 min
B-,3.190 MeV
Te-131
130.91194
132
2.79 min
B-,5.290 MeV
Te-132
131.91420
133
2.5 min
B-,4.003 MeV
Te-133
132.91523
134
0.78 sec
B-/B-n,8.420
Te-134/Te-133
133.92057
135
1.662 sec
B-/B-n,8.120
Te-135/Te-134
134.92516
136
0.82 sec
B-/B-n,9.300
Te-136/Te-135
135.93011
MASS abund.
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass