In - Indium

Indium was discovered in 1863 by Reich and Richter in Germany.

Atomic number - 49 Density g/mL 7 .31
Atomic weight u 114 .82 Melting point K 429 .76
Bonding radius A 1 .44 Boiling point K 2346
Atomic radius A 2 Heat of vaporization kJ/mol 231 .5
Ionization Potential V 5 .786 Heat of fusion kJ/mol 3 .263
Electronegativity - 1 .78 Specific heat J/gK 0 .23
The oxide is amphoteric.
Crystal are tetragonal.

Electron config. : [Kr] 4d10 5s2 5p1

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
H He
Li Be B C N O F Ne
Na Mg Al Si P S Cl Ar
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La* Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac** Rf Db Sg Bh Hs Mt 110 111 112 113
Lanthanides* Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
Actinides ** Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr

Isotopes of In: Click mass number for decay process, product for element page.
100
6.1 sec
EC/ECp,10.200
Cd-100/Ag-99
99.931185 		101
16 sec
EC/ECp,7.300
Cd-101/Ag-100
100.92656 		102
24 sec
EC,8.900 MeV
Cd-102
101.92431 		103
65 sec
EC,6.050 MeV
Cd-103
102.91991 		104
1.80 min
EC,7.910 MeV
Cd-104
103.91833 		105
5.07 min
EC,4.849 MeV
Cd-105
104.91467 		106
6.2 min
EC,6.521 MeV
Cd-106
105.91345
107
32.4 min
EC,3.426 MeV
Cd-107
106.91029 		108
58.0 min
EC,5.148 MeV
Cd-108
107.90970 		109
4.2 hr
EC,2.020 MeV
Cd-109
108.90715 		110
4.9 hr
EC,3.878 MeV
Cd-110
109.90716 		111
2.8047 da
EC,1.097 MeV
Cd-111
110.90511 		112
14.97 min
B-/EC,2.586
Sn-112/Cd-112
111.90553 		113 4.29%

Stable

112.90406
114
71.9 sec
B-/EC,1.989
Sn-114/Cd-114
113.90491 		114a
49.51 da
EC,1.642 MeV
Cd-114
113.90512 		115 95.71%
4.41E+14 yr
B-,1.627 MeV
Sn-115
114.90387 		116
14.10 sec
B-/EC,3.274
Sn-116/Cd-116
115.90526 		117
43.2 min
B-,1.455 MeV
Sn-117
116.90451 		118
5.0 sec
B-,4.423 MeV
Sn-118
117.90635 		119
2.4 min
B-,2.364 MeV
Sn-119
118.90584
120
3.08 sec
B-,5.370 MeV
Sn-120
119.90796 		121
23.1 sec
B-,3.360 MeV
Sn-121
120.90784 		122
1.5 sec
B-,6.370 MeV
Sn-122
121.91027 		123
5.98 sec
B-,4.391 MeV
Sn-123
122.91043 		124
3.17 sec
B-,7.360 MeV
Sn-124
123.91317 		125
2.36 sec
B-,5.420 MeV
Sn-125
124.91360 		126
1.60 sec
B-,8.210 MeV
Sn-126
125.91646
127
1.09 sec
B-/B-n,6.510
Sn-127/Sn-126
126.91734 		128
0.84 sec
B-/B-n,8.980
Sn-128/Sn-127
127.92017 		129
0.61 sec
B-/B-n,7.660
Sn-129/Sn-128
128.92165 		130
0.26 sec
B-/B-n,10.250
Sn-130/Sn-129
129.92486 		131
0.28 sec
B-/B-n,9.180
Sn-131/Sn-130
130.92678 		132
0.201 sec
B-/B-n,13.600
Sn-132/Sn-131
131.93236 		133
180 msec
B-/B-n,13.500
Sn-133/Sn-132
132.93837
MASS abund.
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass

Updated by clh on 2/6/98. This is not a publication of Phoenix College.