Periodic Table/Radon/²⁰⁸Rn

← 207Rn209Rn →

²⁰⁸Rn

Radon-208

Radioactive· Half-life: 24.4 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

86

Neutrons (N)

122

Mass Number (A)

208

Atomic Mass

207.989635AMU

Spin / Parity

0+

Binding E/A

7.583keV

Natural Abundance

Trace / None

Half-life

24.4 min

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

α

62.0%

β⁺

38.0%

Decay Chain

²⁰⁸RnRadon24.4 min

α62.0%

β⁺²⁰⁸At38.0%

²⁰⁴PoPolonium3.52 h

β⁺99.3%

α²⁰⁰Pb0.67%

²⁰⁴BiBismuth11.2 h

β⁺100.0%

²⁰⁴PbLeadSTABLE

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

Other Isotopes of Radon

193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231

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