Periodic Table/Astatine/²²³At

← 222At224At →

²²³At

Astatine-223

Radioactive· Half-life: 50.0 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

85

Neutrons (N)

138

Mass Number (A)

223

Atomic Mass

223.025151AMU

Spin / Parity

3/2-

Binding E/A

7.473keV

Natural Abundance

Trace / None

Half-life

50.0 s

Decay Modesoverview · half-life · α · β⁻ · β⁺

β⁻

100.0%

α

Decay Chain

²²³AtAstatine50.0 s

β⁻100.0%

α²¹⁹Bi

²²³RnRadon24.3 min

β⁻100.0%

α²¹⁹Po

²²³FrFrancium22.0 min

β⁻100.0%

α²¹⁹At0.01%

²²³RaRadium11.4 d

α100.0%

¹⁴C²⁰⁹Pb8.90%

²¹⁹RnRadon3.96 s

α100.0%

²¹⁵PoPolonium1.78 ms

α100.0%

β⁻²¹⁵At2.30%

²¹¹PbLead36.2 min

β⁻100.0%

²¹¹BiBismuth2.14 min

α100.0%

β⁻²¹¹Po0.28%

²⁰⁷TlThallium4.77 min

β⁻100.0%

²⁰⁷PbLeadSTABLE

10-step decay chain → stable · Primary path shown · branching ratios indicated

Other Isotopes of Astatine

191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229

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