Periodic Table/Astatine/¹⁹⁶At

← 195At197At →

¹⁹⁶At

Astatine-196

Radioactive· Half-life: 377 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

85

Neutrons (N)

111

Mass Number (A)

196

Atomic Mass

195.995799AMU

Spin / Parity

3+

Binding E/A

7.530keV

Natural Abundance

Trace / None

Half-life

377 ms

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

α

97.5%

β⁺

β⁺SF

0.0%

Decay Chain

¹⁹⁶AtAstatine377 ms

α97.5%

β⁺¹⁹⁶Po

¹⁹²BiBismuth34.6 s

β⁺88.0%

α¹⁸⁸Tl12.0%

¹⁹²PbLead3.50 min

β⁺100.0%

α¹⁸⁸Hg0.01%

¹⁹²TlThallium9.60 min

β⁺100.0%

¹⁹²HgMercury4.85 h

EC100.0%

α¹⁸⁸Pt

¹⁹²AuGold4.94 h

β⁺100.0%

¹⁹²PtPlatinumSTABLE

7-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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