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Thallium
Superconducting Point of Beryllium
Og (Symbol of Oganesson)
49 (Atomic Number of Indium)
Curie Point of Iodine in °C

Bi

Bismuth

Properties

Isotopes

Electrons

41 known isotopes (0 stable, 41 radioactive)

Show stable only

¹⁸⁴Bi

Mass

184.001347 u

Abundance

—

Half-life

13 milliseconds

Spin/Parity

—

Decay Mode(s)

α (100%)

¹⁸⁵Bi

Mass

184.997600 u

Abundance

—

Half-life

58 microseconds

Spin/Parity

1/2+

Decay Mode(s)

Proton emission (90%), α (10%)

¹⁸⁶Bi

Mass

185.996623 u

Abundance

—

Half-life

14.8 milliseconds

Spin/Parity

(3+)

Decay Mode(s)

α (95.5%), EC/β⁺ (4.5%), SF+EC+B+ (0.02%)

¹⁸⁷Bi

Mass

186.993147 u

Abundance

—

Half-life

37 milliseconds

Spin/Parity

(9/2-)

Decay Mode(s)

α (100%)

¹⁸⁸Bi

Mass

187.992276 u

Abundance

—

Half-life

60 milliseconds

Spin/Parity

(3+)

Decay Mode(s)

α (100%)

¹⁸⁹Bi

Mass

188.989195 u

Abundance

—

Half-life

688 milliseconds

Spin/Parity

(9/2-)

Decay Mode(s)

α (100%)

¹⁹⁰Bi

Mass

189.988625 u

Abundance

—

Half-life

6.3 seconds

Spin/Parity

(3+)

Decay Mode(s)

α (90%), EC/β⁺ (10%), SF+EC+B+ (0.000023%)

¹⁹¹Bi

Mass

190.985787 u

Abundance

—

Half-life

12.4 seconds

Spin/Parity

(9/2-)

Decay Mode(s)

α (51%), EC/β⁺ (49%)

¹⁹²Bi

Mass

191.985470 u

Abundance

—

Half-life

34.6 seconds

Spin/Parity

(3+)

Decay Mode(s)

EC/β⁺ (88%), α (12%)

¹⁹³Bi

Mass

192.982947 u

Abundance

—

Half-life

63.6 seconds

Spin/Parity

(9/2-)

Decay Mode(s)

EC/β⁺ (96.5%), α (3.5%)

¹⁹⁴Bi

Mass

193.982799 u

Abundance

—

Half-life

95 seconds

Spin/Parity

(3+)

Decay Mode(s)

EC/β⁺ (99.54%), α (0.46%)

¹⁹⁵Bi

Mass

194.980649 u

Abundance

—

Half-life

183 seconds

Spin/Parity

[9/2-]

Decay Mode(s)

EC/β⁺ (99.97%), α (0.03%)

¹⁹⁶Bi

Mass

195.980667 u

Abundance

—

Half-life

308 seconds

Spin/Parity

(3+)

Decay Mode(s)

EC/β⁺ (100%), α (0.00115%)

¹⁹⁷Bi

Mass

196.978865 u

Abundance

—

Half-life

9.33 m

Spin/Parity

(9/2-)

Decay Mode(s)

EC/β⁺ (100%), α (0.0001%)

¹⁹⁸Bi

Mass

197.979201 u

Abundance

—

Half-life

10.3 m

Spin/Parity

(2+ 3+)

Decay Mode(s)

EC/β⁺ (100%)

¹⁹⁹Bi

Mass

198.977673 u

Abundance

—

Half-life

27 m

Spin/Parity

9/2-

Decay Mode(s)

EC/β⁺ (100%)

²⁰⁰Bi

Mass

199.978131 u

Abundance

—

Half-life

36.4 m

Spin/Parity

Decay Mode(s)

EC/β⁺ (100%)

²⁰¹Bi

Mass

200.976995 u

Abundance

—

Half-life

103 m

Spin/Parity

9/2-

Decay Mode(s)

EC/β⁺ (100%)

²⁰²Bi

Mass

201.977723 u

Abundance

—

Half-life

1.71 h

Spin/Parity

Decay Mode(s)

EC/β⁺ (100%)

²⁰³Bi

Mass

202.976892 u

Abundance

—

Half-life

11.76 h

Spin/Parity

9/2-

Decay Mode(s)

EC/β⁺ (100%)

²⁰⁴Bi

Mass

203.977836 u

Abundance

—

Half-life

11.22 h

Spin/Parity

Decay Mode(s)

EC/β⁺ (100%)

²⁰⁵Bi

Mass

204.977385 u

Abundance

—

Half-life

14.91 d

Spin/Parity

9/2-

Decay Mode(s)

EC/β⁺ (100%)

²⁰⁶Bi

Mass

205.978499 u

Abundance

—

Half-life

6.243 d

Spin/Parity

Decay Mode(s)

EC/β⁺ (100%)

²⁰⁷Bi

Mass

206.978471 u

Abundance

—

Half-life

31.55 years

Spin/Parity

9/2-

Decay Mode(s)

EC/β⁺ (100%)

²⁰⁸Bi

Mass

207.979742 u

Abundance

—

Half-life

3.68E+5 years

Spin/Parity

Decay Mode(s)

EC/β⁺ (100%)

²⁰⁹Bi

Mass

208.980399 u

Abundance

100.0000%

Half-life

2.01E19 years

Spin/Parity

9/2-

Decay Mode(s)

α (100%)

²¹⁰Bi

Mass

209.984120 u

Abundance

—

Half-life

5.012 d

Spin/Parity

Decay Mode(s)

β⁻ (100%), α (0.000132%)

²¹¹Bi

Mass

210.987269 u

Abundance

—

Half-life

2.14 m

Spin/Parity

9/2-

Decay Mode(s)

α (99.724%), β⁻ (0.276%)

²¹²Bi

Mass

211.991285 u

Abundance

—

Half-life

60.55 m

Spin/Parity

1(-)

Decay Mode(s)

β⁻ (64.06%), α (35.94%)

²¹³Bi

Mass

212.994384 u

Abundance

—

Half-life

45.59 m

Spin/Parity

9/2-

Decay Mode(s)

β⁻ (97.86%), α (2.14%)

²¹⁴Bi

Mass

213.998711 u

Abundance

—

Half-life

19.71 m

Spin/Parity

Decay Mode(s)

β⁻ (99.979%), α (0.021%), β⁻α (0.003%)

²¹⁵Bi

Mass

215.001749 u

Abundance

—

Half-life

7.6 m

Spin/Parity

(9/2-)

Decay Mode(s)

β⁻ (100%)

²¹⁶Bi

Mass

216.006306 u

Abundance

—

Half-life

2.25 m

Spin/Parity

(6- 7-)

Decay Mode(s)

β⁻ (100%)

²¹⁷Bi

Mass

217.009372 u

Abundance

—

Half-life

98.5 seconds

Spin/Parity

(9/2-)

Decay Mode(s)

β⁻ (100%)

²¹⁸Bi

Mass

218.014188 u

Abundance

—

Half-life

33 seconds

Spin/Parity

(6- 7- 8-)

Decay Mode(s)

β⁻ (100%)

²¹⁹Bi

Mass

219.017520 u

Abundance

—

Half-life

22 seconds

Spin/Parity

(9/2-)

Decay Mode(s)

β⁻ (100%)

²²⁰Bi

Mass

220.022501 u

Abundance

—

Half-life

300 nanoseconds

Spin/Parity

—

Decay Mode(s)

Unknown

²²¹Bi

Mass

221.025980 u

Abundance

—

Half-life

300 nanoseconds

Spin/Parity

—

Decay Mode(s)

Unknown

²²²Bi

Mass

222.031079 u

Abundance

—

Half-life

300 nanoseconds

Spin/Parity

—

Decay Mode(s)

Unknown

²²³Bi

Mass

223.034611 u

Abundance

—

Half-life

300 nanoseconds

Spin/Parity

—

Decay Mode(s)

Unknown

²²⁴Bi

Mass

224.039796 u

Abundance

—

Half-life

Unknown

Spin/Parity

—

Decay Mode(s)

β⁻ (100%)

Decay mode abbreviations:

β⁻ = Beta minus decay, β⁺ = Beta plus decay, EC = Electron capture, α = Alpha decay

n = Neutron emission, p = Proton emission, SF = Spontaneous fission, IT = Isomeric transition

Conversions Print

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