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Tantalum
Thermal Expansion of Tellurium
Na (Symbol of Sodium)
48 (Atomic Number of Cadmium)
Melting Point of Antimony in °F

Cl

Chlorine

24 known isotopes (2 stable, 22 radioactive)

Show stable only

²⁹Cl

Mass

29.015053 u

Abundance

—

Half-life

20 nanoseconds

Spin/Parity

(1/2+)

Decay Mode(s)

Proton emission (100%)

³⁰Cl

Mass

30.005018 u

Abundance

—

Half-life

30 nanoseconds

Spin/Parity

(3+)

Decay Mode(s)

Unknown

³¹Cl

Mass

30.992448 u

Abundance

—

Half-life

190 milliseconds

Spin/Parity

3/2+

Decay Mode(s)

EC/β⁺ (100%), ECP (2.4%)

³²Cl

Mass

31.985685 u

Abundance

—

Half-life

298 milliseconds

Spin/Parity

1+

Decay Mode(s)

EC/β⁺ (100%), ECA (0.054%), ECP (0.026%)

³³Cl

Mass

32.977452 u

Abundance

—

Half-life

2.511 seconds

Spin/Parity

3/2+

Decay Mode(s)

EC/β⁺ (100%)

³⁴Cl

Mass

33.973762 u

Abundance

—

Half-life

1.5266 seconds

Spin/Parity

0+

Decay Mode(s)

EC/β⁺ (100%)

³⁵Cl Stable

Mass

34.968853 u

Abundance

75.8000%

Half-life

Stable

Spin/Parity

3/2+

Decay Mode(s)

—

³⁶Cl

Mass

35.968307 u

Abundance

—

Half-life

3.013E+5 years

Spin/Parity

2+

Decay Mode(s)

β⁻ (98.1%), EC/β⁺ (1.9%)

³⁷Cl Stable

Mass

36.965903 u

Abundance

24.2000%

Half-life

Stable

Spin/Parity

3/2+

Decay Mode(s)

—

³⁸Cl

Mass

37.968010 u

Abundance

—

Half-life

37.230 m

Spin/Parity

2-

Decay Mode(s)

β⁻ (100%)

³⁹Cl

Mass

38.968008 u

Abundance

—

Half-life

56.2 m

Spin/Parity

3/2+

Decay Mode(s)

β⁻ (100%)

⁴⁰Cl

Mass

39.970415 u

Abundance

—

Half-life

1.35 m

Spin/Parity

2-

Decay Mode(s)

β⁻ (100%)

⁴¹Cl

Mass

40.970685 u

Abundance

—

Half-life

38.4 seconds

Spin/Parity

(1/2+)

Decay Mode(s)

β⁻ (100%)

⁴²Cl

Mass

41.973342 u

Abundance

—

Half-life

6.8 seconds

Spin/Parity

(2-)

Decay Mode(s)

β⁻ (100%)

⁴³Cl

Mass

42.974064 u

Abundance

—

Half-life

3.13 seconds

Spin/Parity

(1/2+)

Decay Mode(s)

β⁻ (100%)

⁴⁴Cl

Mass

43.978015 u

Abundance

—

Half-life

0.56 seconds

Spin/Parity

(2-)

Decay Mode(s)

β⁻ (100%), β⁻n (8%)

⁴⁵Cl

Mass

44.980394 u

Abundance

—

Half-life

413 milliseconds

Spin/Parity

(1/2+)

Decay Mode(s)

β⁻ (100%), β⁻n (24%)

⁴⁶Cl

Mass

45.985255 u

Abundance

—

Half-life

232 milliseconds

Spin/Parity

(2-)

Decay Mode(s)

β⁻ (100%), β⁻n (60%)

⁴⁷Cl

Mass

46.989715 u

Abundance

—

Half-life

101 milliseconds

Spin/Parity

—

Decay Mode(s)

β⁻ (100%), β⁻n (3%)

⁴⁸Cl

Mass

47.995405 u

Abundance

—

Half-life

Unknown

Spin/Parity

—

Decay Mode(s)

Unknown

⁴⁹Cl

Mass

49.000794 u

Abundance

—

Half-life

170 nanoseconds

Spin/Parity

—

Decay Mode(s)

Unknown

⁵⁰Cl

Mass

50.008266 u

Abundance

—

Half-life

Unknown

Spin/Parity

—

Decay Mode(s)

β⁻ (100%)

⁵¹Cl

Mass

51.015341 u

Abundance

—

Half-life

Unknown

Spin/Parity

—

Decay Mode(s)

β⁻ (100%)

⁵²Cl

Mass

52.024004 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

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Sy

Name

Atomic Mass

Series

Metals

Nonmetals