85 – Astatine, At

PERIODIC TABLE

Spectrograph
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Elemental Tile
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Astatine from Bismuth
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Astatine occurs on Earth as the decay product of various heavier elements. All of its isotopes are short-lived with the most stable being astatine-210, with a half-life of 8.1 hours. Elemental astatine has never been viewed as any macroscopic sample would be immediately vaporized by its radioactive heating.

1940 by Dale Corson, Kenneth Ross MacKenzie and Emilio Segrè, California, USA.

DISCOVERY

Greek 'astatos' meaning 'unstable'.

ETYMOLOGY

Astatine

Element

At

Symbol

85 Atomic Number

Halogen

Classification

7440-68-8

CAS Number

Silver

Elemental Colour

-

Refractive Index

-

Poisson Ratio

33.148 cm³

Molar Volume

-

Brinell Hardness

-

Mohs Hardness

-

Vickers Hardness

-

Speed of Sound

-

Bulk Modulus

-

Shear Modulus

-

Young Modulus

Allotropes

NONE

575.15 K, 302.00 °C

302.00 °C

Melting Point

-

Boiling Point

-

Automatic Ignition

-

Flashpoint

-

Critical Temperature

-

Critical Pressure

2.000'000 W/(m K)

Thermal Conductivity

-

Thermal Expansion

-

Specific Heat

6.000 kJ/mol

Heat Fusion

40.000 kJ/mol

Heat Vaporisation

-

Heat Combustion

-

Curie Point

-

Neel Point

-

Adiabatic Index

Solid

Phase

-

Electrical Type

-

Conductivity

-

Resistivity

-

Superconducting Point

-

Magnetic Type

-

Mass Susceptibility

-

Molar Susceptibility

-

Volume Susceptibility

Material Composition

-

Universe

-

Meteorites

-

Sun

-

Earth Crust

-

Oceans

-

Humans

210.487'322'3

Atomic Weight

120 pm

Atomic Radius

147 pm

Covalent Radius Single Bond

138 pm

Covalent Radius Double Bond

138 pm

Covalent Radius Triple Bond

202 pm

Van der Waals Radius

[Xe]6s²4f¹⁴5d¹⁰6p⁵

Electron Configuration

Cubic, Face-centred

Crystal Structure

6.350 g/cm³

Density as Solid

-

Density as Liquid

-

Density as Gas

-

Space Group Name

-

Space Group Number

-

Lattice Angles

-

Lattice Constants

7 Valence

2.2 Electronegativity

233.50 kJ/mol

Electron Affinity

Ionisation Energy

8.06 hours

Half Life

11.67 hours

Lifetime

6p⁵ = 6, 1, 0, -1/2

Quantum Numbers

-

Neutron Cross Section

-

Neutron Mass Absorption

Stable Isotopes

NONE

Unstable Isotopes

Isotopes Overview

Isotope	Stability	Symbol	Type	Protons		Neutrons		Spin	Parity	Mass		Abundance		Mass Measure	Mass Excess		Binding Energy		Dipole Moment	Quadrupole Moment	Halflife in Years		Halflife in Seconds		A01 Decay Probability		A01 Decay Mode	A01 Decay Energy		A01 Decay Daughter	A01 Decay Link	A02 Decay Mode	A02 Decay Energy		A02 Decay Daughter	A02 Decay Link	A03 Decay Probability		A03 Decay Mode	A03 Decay Energy		A03 Decay Daughter	A03 Decay Link	Y01 Decay Product Yield		Y01 Decay Product Nuclide	Y02 Decay Product Yield		Y02 Decay Product Nuclide	Y03 Decay Product Yield		Y03 Decay Product Nuclide	Y04 Decay Product Yield		Y04 Decay Product Nuclide	Y05 Decay Product Yield		Y05 Decay Product Nuclide	Y06 Decay Product Yield		Y06 Decay Product Nuclide
Isotope_085_at_193_u	Unstable	¹⁹³At	Boson	85	p	108	n	9/2	-1	192.999'843'112'0	u	~ 0	%	~ 0	15.465'000'000'0	MeV	7.702'000'000'0	MeV	-	-	1.27E-9	year	40.000	milli-seconds ( x⁻³ )	100.000'000	%	α	7,490.000	keV	¹⁸⁹Bi	¹⁹³At > [ 100 % , α , 7,490.0 keV ] > ¹⁸⁹Bi													49.500'000	%	¹⁸⁹Os	0.188'030	%	¹⁸⁵Re	0.012'498	%	¹⁸¹Ta
Isotope_085_at_194_u	Unstable	¹⁹⁴At	Fermion	85	p	109	n	3	1	193.998'725'085'0	u	~ 0	%	~ 0	-0.146'140'000'0	MeV	7.727'518'000'0	MeV	-	-	1.27E-9	year	40.000	milli-seconds ( x⁻³ )	100.000'000	%	α	7,290.500	keV	¹⁹⁰Bi	¹⁹⁴At > [ 100 % , α , 7,290.5 keV ] > ¹⁹⁰Bi	β+	8,795.000	keV	¹⁹⁴Po	¹⁹⁴At > [ , β+ , 8,795.0 keV ] > ¹⁹⁴Po								?	%	¹⁹⁴Pt	?	%	¹⁷⁸Hf	?	%	¹⁹⁰Os	0.000'009	%	¹⁷⁷Hf	?	%	¹⁷³Yb
Isotope_085_at_195_u	Unstable	¹⁹⁵At	Boson	85	p	110	n	1/2	1	194.996'268'098'0	u	~ 0	%	~ 0	-1.187'575'000'0	MeV	7.734'658'000'0	MeV	-	-	1.04E-8	year	328.000	milli-seconds ( x⁻³ )	100.000'000	%	α	7,338.000	keV	¹⁹¹Bi	¹⁹⁵At > [ 100 % , α , 7,338.0 keV ] > ¹⁹¹Bi	β+	6,576.300	keV	¹⁹⁵Po	¹⁹⁵At > [ , β+ , 6,576.3 keV ] > ¹⁹⁵Po								60.002'500	%	¹⁸⁷Os	0.000'001	%	¹⁷⁹Hf	?	%	¹⁹⁵Pt
Isotope_085_at_196_u	Unstable	¹⁹⁶At	Fermion	85	p	111	n	3	1	195.995'788'077'0	u	~ 0	%	~ 0	-3.476'244'000'0	MeV	7.748'121'000'0	MeV	-	-	8.02E-9	year	253.000	milli-seconds ( x⁻³ )	96.000'000	%	α	7,197.500	keV	¹⁹²Bi	¹⁹⁶At > [ 96 % , α , 7,197.5 keV ] > ¹⁹²Bi	β+	8,528.900	keV	¹⁹⁶Po	¹⁹⁶At > [ , β+ , 8,528.9 keV ] > ¹⁹⁶Po								88.240'003	%	¹⁹²Pt	11.525'210	%	¹⁸⁸Os	?	%	¹⁹⁶Pt	?	%	¹⁹¹Ir
Isotope_085_at_197_u	Unstable	¹⁹⁷At	Boson	85	p	112	n	9/2	-1	196.993'189'215'0	u	~ 0	%	~ 0	-3.923'380'000'0	MeV	7.752'051'000'0	MeV	-	-	1.11E-8	year	350.000	milli-seconds ( x⁻³ )	96.000'000	%	α	7,103.800	keV	¹⁹³Bi	¹⁹⁷At > [ 96 % , α , 7,103.8 keV ] > ¹⁹³Bi	β+	5,991.600	keV	¹⁹⁷Po	¹⁹⁷At > [ , β+ , 5,991.6 keV ] > ¹⁹⁷Po								3.360'000	%	¹⁸⁹Os	2.240'000	%	¹⁹⁷Au	0.000'002	%	¹⁹³Ir	?	%	¹⁸⁰Hf	?	%	¹⁷⁶Hf
Isotope_085_at_198_u	Unstable	¹⁹⁸At	Fermion	85	p	113	n	3	1	197.992'837'202'0	u	~ 0	%	~ 0	-6.344'205'000'0	MeV	7.765'960'000'0	MeV	-	-	1.33E-7	year	4.200	seconds ( x⁰ )	94.000'000	%	α	6,893.040	keV	¹⁹⁴Bi	¹⁹⁸At > [ 94 % , α , 6,893.04 keV ] > ¹⁹⁴Bi	β+	7,779.100	keV	¹⁹⁸Po	¹⁹⁸At > [ , β+ , 7,779.1 keV ] > ¹⁹⁸Po								94.000'000	%	¹⁹⁴Pt	?	%	¹⁸⁹Hg	?	%	¹⁹⁰Os	0.000'002	%	¹⁸⁵Re	0.000'000	%	¹⁸¹Ta
Isotope_085_at_199_u	Unstable	¹⁹⁹At	Boson	85	p	114	n	9/2	-1	198.990'532'254'0	u	~ 0	%	~ 0	-6.672'103'000'0	MeV	7.769'159'000'0	MeV	-	-	2.28E-7	year	7.200	seconds ( x⁰ )	89.000'000	%	α	6,779.700	keV	¹⁸⁵Bi	¹⁹⁹At > [ 89 % , α , 6,779.7 keV ] > ¹⁸⁵Bi	β+	5,373.600	keV	¹⁹⁹Po	¹⁹⁹At > [ , β+ , 5,373.6 keV ] > ¹⁹⁹Po								89.000'000	%	¹⁹⁵Pt	?	%	¹⁸⁷Os	?	%	¹⁹⁹Hg	?	%	¹⁷⁸Hf
Isotope_085_at_200_u	Unstable	²⁰⁰At	Fermion	85	p	115	n	3	1	199.990'351'264'0	u	~ 0	%	~ 0	-8.819'148'000'0	MeV	7.781'466'000'0	MeV	-	-	1.37E-6	year	43.200	seconds ( x⁰ )	57.000'000	%	α	6,596.380	keV	¹⁸⁶Bi	²⁰⁰At > [ 57 % , α , 6,596.38 keV ] > ¹⁸⁶Bi	β+	6,944.600	keV	²⁰⁰Po	²⁰⁰At > [ , β+ , 6,944.6 keV ] > ²⁰⁰Po								38.227'000	%	²⁰⁰Hg	0.000'674	%	¹⁹²Pt	0.000'000	%	¹⁸⁸Os	?	%	¹⁹¹Ir
Isotope_085_at_201_u	Unstable	²⁰¹At	Boson	85	p	116	n	9/2	-1	200.988'416'999'0	u	~ 0	%	~ 0	-8.987'739'000'0	MeV	-8.987'739'000'0	MeV	-	-	2.70E-6	year	85.200	seconds ( x⁰ )	71.000'000	%	α	6,473.220	keV	¹⁹⁷Bi	²⁰¹At > [ 71 % , α , 6,473.22 keV ] > ¹⁹⁷Bi	β+	4,713.200	keV	²⁰¹Po	²⁰¹At > [ , β+ , 4,713.2 keV ] > ²⁰¹Po								71.464'029	%	¹⁹⁷Au	28.536'000	%	²⁰¹Hg	0.000'071	%	¹⁹³Ir	?	%	¹⁹⁶Pt	?	%	¹⁸⁰Hf	?	%	¹⁷⁶Hf
Isotope_085_at_202_u	Unstable	²⁰²At	Fermion	85	p	117	n	?	1	201.988'630'236'0	u	~ 0	%	~ 0	-10.789'496'000'0	MeV	7.794'153'000'0	MeV	-	-	5.83E-6	year	184.020	seconds ( x⁰ )	82.000'000	%	β+	6,311.200	keV	²⁰²Po	²⁰²At > [ 82 % , β+ , 6,311.2 keV ] > ²⁰²Po	α	6,353.700	keV	¹⁹⁸Bi	²⁰²At > [ , α , 6,353.7 keV ] > ¹⁹⁸Bi								80.425'600	%	²⁰²Hg	20.378'664	%	¹⁹⁸Hg				0.000'000	%	¹⁸⁹Os
Isotope_085_at_203_u	Unstable	²⁰³At	Boson	85	p	118	n	9/2	-1	202.986'941'984'0	u	~ 0	%	~ 0	-10.590'867'000'0	MeV	7.794'542'000'0	MeV	-	-	1.39E-5	year	439.980	seconds ( x⁰ )	69.000'000	%	β+	4,121.400	keV	²⁰³Po	²⁰³At > [ 69 % , β+ , 4,121.4 keV ] > ²⁰³Po	α	6,210.050	keV	¹⁹⁹Bi	²⁰³At > [ , α , 6,210.05 keV ] > ¹⁹⁹Bi								69.000'000	%	²⁰³Tl	31.075'907	%	¹⁹⁹Hg
Isotope_085_at_204_u	Unstable	²⁰⁴At	Fermion	85	p	119	n	7	1	203.987'251'326'0	u	~ 0	%	~ 0	-12.163'464'000'0	MeV	7.804'7.804'7.804'7.804	MeV	-	-	1.74E-5	year	550.020	seconds ( x⁰ )	96.200'000	%	β+	5,436.000	keV	²⁰⁴Po	²⁰⁴At > [ 96.2 % , β+ , 5,436.0 keV ] > ²⁰⁴Po	α	6,069.840	keV	²⁰⁰Bi	²⁰⁴At > [ , α , 6,069.84 keV ] > ²⁰⁰Bi								4.434'290	%	²⁰⁰Hg
Isotope_085_at_205_u	Unstable	²⁰⁵At	Boson	85	p	120	n	9/2	-1	204.986'074'483'0	u	~ 0	%	~ 0	-11.875'313'000'0	MeV	7.803'552'000'0	MeV	-	-	4.98E-5	year	1.570	kilo-seconds ( x³ )	90.000'000	%	β+	3,515.300	keV	²⁰⁵Po	²⁰⁵At > [ 90 % , β+ , 3,515.3 keV ] > ²⁰⁵Po	α	6,019.490	keV	²⁰¹Bi	²⁰⁵At > [ , α , 6,019.49 keV ] > ²⁰¹Bi								90.000'000	%	²⁰⁵Tl	10.036'000	%	²⁰¹Hg	0.000'010	%	¹⁹⁷Au
Isotope_085_at_206_u	Unstable	²⁰⁶At	Fermion	85	p	121	n	5	1	205.986'667'036'0	u	~ 0	%	~ 0	-12.971'536'000'0	MeV	7.810'205'000'0	MeV	-	-	5.83E-5	year	1.840	kilo-seconds ( x³ )	99.110'000	%	β+	4,740.000	keV	²⁰⁶Po	²⁰⁶At > [ 99.11 % , β+ , 4,740.0 keV ] > ²⁰⁶Po	α	5,888.400	keV	²⁰²Bi	²⁰⁶At > [ , α , 5,888.4 keV ] > ²⁰²Bi								93.708'505	%	²⁰⁶Pb	6.291'495	%	²⁰²Hg	0.062'915	%	¹⁹⁸Hg
Isotope_085_at_207_u	Unstable	²⁰⁷At	Boson	85	p	122	n	9/2	-1	206.985'783'502'0	u	~ 0	%	~ 0	-12.419'576'000'0	MeV	7.808'793'000'0	MeV	-	-	2.06E-4	year	6.516	kilo-seconds ( x³ )	91.400'000	%	β+	2,881.100	keV	²⁰⁷Po	²⁰⁷At > [ 91.4 % , β+ , 2,881.1 keV ] > ²⁰⁷Po	α	5,872.370	keV	²⁰³Bi	²⁰⁷At > [ , α , 5,872.37 keV ] > ²⁰³Bi								91.400'000	%	²⁰⁷Pb	8.619'194	%	²⁰³Tl	0.000'001	%	¹⁹⁹Hg
Isotope_085_at_208_u	Unstable	²⁰⁸At	Fermion	85	p	123	n	6	1	207.986'589'977'0	u	~ 0	%	~ 0	-13.242'582'000'0	MeV	7.814'037'000'0	MeV	-	-	1.86E-4	year	5.870	kilo-seconds ( x³ )	99.450'000	%	β+	3,956.000	keV	²⁰⁸Po	²⁰⁸At > [ 99.45 % , β+ , 3,956.0 keV ] > ²⁰⁸Po	α	5,751.030	keV	²⁰⁴Bi	²⁰⁸At > [ , α , 5,751.03 keV ] > ²⁰⁴Bi								0.002'218	%	²⁰⁸Pb	?	%	²⁰⁰Hg
Isotope_085_at_209_u	Unstable	²⁰⁹At	Boson	85	p	124	n	9/2	-1	208.986'173'143'0	u	~ 0	%	~ 0	-12.491'356'000'0	MeV	7.811'663'000'0	MeV	-	-	6.18E-4	year	19.501	kilo-seconds ( x³ )	95.900'000	%	β+	2,464.110	keV	²⁰⁹Po	²⁰⁹At > [ 95.9 % , β+ , 2,464.11 keV ] > ²⁰⁹Po	α	5,757.120	keV	²⁰⁵Bi	²⁰⁹At > [ , α , 5,757.12 keV ] > ²⁰⁵Bi								100.460'320	%	²⁰⁵Tl
Isotope_085_at_210_u	Unstable	²¹⁰At	Fermion	85	p	125	n	5	1	209.987'147'710'0	u	~ 0	%	~ 0	-12.879'634'000'0	MeV	7.814'763'000'0	MeV	-	-	9.19E-4	year	29.016	kilo-seconds ( x³ )	100.000'000	%	β+	2,959.040	keV	²¹⁰Po	²¹⁰At > [ 100 % , β+ , 2,959.04 keV ] > ²¹⁰Po	α	5,631.190	keV	²⁰⁶Bi	²¹⁰At > [ , α , 5,631.19 keV ] > ²⁰⁶Bi								100.175'000	%	²⁰⁶Pb
Isotope_085_at_211_u	Unstable	²¹¹At	Boson	85	p	126	n	9/2	-1	210.987'496'271'0	u	~ 0	%	~ 0	-11.971'830'000'0	MeV	7.811'662'000'0	MeV	-	-	8.23E-4	year	25.970	kilo-seconds ( x³ )	58.200'000	%	ϵ	785.360	keV	²¹¹Po	²¹¹At > [ 58.2 % , ϵ , 785.36 keV ] > ²¹¹Po	α	5,982.370	keV	²⁰⁷Bi	²¹¹At > [ , α , 5,982.37 keV ] > ²⁰⁷Bi								100.000'000	%	²⁰⁷Pb
Isotope_085_at_212_u	Unstable	²¹²At	Fermion	85	p	127	n	1	-1	211.990'744'771'0	u	~ 0	%	~ 0	-11.647'148'000'0	MeV	7.811'354'000'0	MeV	-	-	9.95E-11	year	3.140	milli-seconds ( x⁻³ )	100.000'000	%	α	7,823.920	keV	²⁰⁸Bi	²¹²At > [ 100 % , α , 7,823.92 keV ] > ²⁰⁸Bi	β+	726.030	keV	²¹²Po	²¹²At > [ , β+ , 726.03 keV ] > ²¹²Po	0.000'002	%	β-	38.420	keV	²¹²Rn	²¹²At > [ 0.000002 % , β- , 38.42 keV ] > ²¹²Rn	100.030'000	%	²⁰⁸Pb	?	%	²⁰⁰Hg
Isotope_085_at_213_u	Unstable	²¹³At	Boson	85	p	128	n	9/2	-1	212.992'936'646'0	u	~ 0	%	~ 0	-8.621'190'000'0	MeV	7.798'306'000'0	MeV	-	-	3.96E-15	year	125.000	nano-seconds ( x⁻⁹ )	100.000'000	%	α	9,254.070	keV	²⁰⁹Bi	²¹³At > [ 100 % , α , 9,254.07 keV ] > ²⁰⁹Bi													100.000'000	%	²⁰⁵Tl
Isotope_085_at_214_u	Unstable	²¹⁴At	Fermion	85	p	129	n	1	-1	213.996'371'733'0	u	~ 0	%	~ 0	-6.579'472'000'0	MeV	7.790'003'000'0	MeV	-	-	1.77E-14	year	558.000	nano-seconds ( x⁻⁹ )	100.000'000	%	α	8,987.150	keV	²¹⁰Bi	²¹⁴At > [ 100 % , α , 8,987.15 keV ] > ²¹⁰Bi													100.000'132	%	²⁰⁶Pb
Isotope_085_at_215_u	Unstable	²¹⁵At	Boson	85	p	130	n	9/2	-1	214.998'652'570'0	u	~ 0	%	~ 0	-3.379'708'000'0	MeV	7.776'365'000'0	MeV	-	-	3.17E-12	year	100.000	micro-seconds ( x⁻⁶ )	100.000'000	%	α	8,178.330	keV	²¹¹Bi	²¹⁵At > [ 100 % , α , 8,178.33 keV ] > ²¹¹Bi													100.276'000	%	²⁰⁷Pb
Isotope_085_at_216_u	Unstable	²¹⁶At	Fermion	85	p	131	n	1	-1	216.002'423'257'0	u	~ 0	%	~ 0	-1.255'123'000'0	MeV	7.767'855'000'0	MeV	-	-	9.51E-12	year	300.000	micro-seconds ( x⁻⁶ )	100.000'000	%	α	7,949.630	keV	²¹²Bi	²¹⁶At > [ 100 % , α , 7,949.63 keV ] > ²¹²Bi	β-	2,001.680	keV	²¹⁶Rn	²¹⁶At > [ , β- , 2,001.68 keV ] > ²¹⁶Rn	0.000'000	%	ϵ	473.410	keV	²¹⁶Po	²¹⁶At > [ 0.0000003 % , ϵ , 473.41 keV ] > ²¹⁶Po	100.010'000	%	²⁰⁸Pb
Isotope_085_at_217_u	Unstable	²¹⁷At	Boson	85	p	132	n	9/2	-1	217.004'718'822'0	u	~ 0	%	~ 0	2.257'250'000'0	MeV	7.752'999'000'0	MeV	-	-	1.02E-9	year	32.300	milli-seconds ( x⁻³ )	100.000'000	%	α	7,201.290	keV	²¹³Bi	²¹⁷At > [ 100 % , α , 7,201.29 keV ] > ²¹³Bi	β-	736.950	keV	²¹⁷Rn	²¹⁷At > [ , β- , 736.95 keV ] > ²¹⁷Rn								100.008'000	%	²⁰⁵Tl
Isotope_085_at_218_u	Unstable	²¹⁸At	Fermion	85	p	133	n	1	-1	218.008'694'336'0	u	~ 0	%	~ 0	4.395'555'000'0	MeV	7.744'612'000'0	MeV	-	-	4.75E-8	year	1.500	seconds ( x⁰ )	100.000'000	%	α	6,874.000	keV	²¹⁴Bi	²¹⁸At > [ 100 % , α , 6,874.0 keV ] > ²¹⁴Bi	β-	2,881.200	keV	²¹⁸Rn	²¹⁸At > [ , β- , 2,881.2 keV ] > ²¹⁸Rn								100.124'134	%	²⁰⁶Pb	0.000'002	%	²⁰⁵Tl
Isotope_085_at_219_u	Unstable	²¹⁹At	Boson	85	p	134	n	5/2	-1	219.011'161'691'0	u	~ 0	%	~ 0	8.098'722'000'0	MeV	7.729'124'000'0	MeV	-	-	1.77E-6	year	55.980	seconds ( x⁰ )	97.000'000	%	α	6,323.600	keV	²¹⁵Bi	²¹⁹At > [ 97 % , α , 6,323.6 keV ] > ²¹⁵Bi	β-	1,566.300	keV	²¹⁹Rn	²¹⁹At > [ , β- , 1,566.3 keV ] > ²¹⁹Rn								100.276'231	%	²⁰⁷Pb
Isotope_085_at_220_u	Unstable	²²⁰At	Fermion	85	p	135	n	3	-1	220.015'407'682'0	u	~ 0	%	~ 0	10.397'048'000'0	MeV	7.720'191'000'0	MeV	-	-	7.07E-6	year	223.020	seconds ( x⁰ )	92.000'000	%	β-	3,738.700	keV	²²⁰Rn	²²⁰At > [ 92 % , β- , 3,738.7 keV ] > ²²⁰Rn	α	6,053.300	keV	²¹⁶Bi	²²⁰At > [ , α , 6,053.3 keV ] > ²¹⁶Bi								100.004'000	%	²⁰⁸Pb
Isotope_085_at_221_u	Unstable	²²¹At	Boson	85	p	136	n	3/2	-1	221.018'050'000'0	u	~ 0	%	~ 0	14.352'164'000'0	MeV	7.703'810'000'0	MeV	-	-	4.44E-6	year	139.980	seconds ( x⁰ )	100.000'000	%	β-	2,341.000	keV	²²¹Rn	²²¹At > [ 100 % , β- , 2,341.0 keV ] > ²²¹Rn													100.010'072	%	²⁰⁵Tl	0.000'000	%	²⁰⁷Pb
Isotope_085_at_222_u	Unstable	²²²At	Fermion	85	p	137	n	?	0	222.022'330'000'0	u	~ 0	%	~ 0	16.813'000'000'0	MeV	7.694'000'000'0	MeV	-	-	1.71E-6	year	54.000	seconds ( x⁰ )	100.000'000	%	β-	4,427.000	keV	²²²Rn	²²²At > [ 100 % , β- , 4,427.0 keV ] > ²²²Rn													100.044'159	%	²⁰⁶Pb	0.000'002	%	²⁰⁵Tl
Isotope_085_at_223_u	Unstable	²²³At	Boson	85	p	138	n	3/2	-1	223.025'190'000'0	u	~ 0	%	~ 0	20.800'000'000'0	MeV	7.678'000'000'0	MeV	-	-	1.58E-5	year	499.800	seconds ( x⁰ )	100.000'000	%	β-	3,167.000	keV	²²³Rn	²²³At > [ 100 % , β- , 3,167.0 keV ] > ²²³Rn	α	?	keV	#NAME?	#NAME?								100.282'247	%	²⁰⁷Pb	0.000'000	%	²⁰⁵Tl

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