Periodic Table/Radon/²⁰²Rn

← 201Rn203Rn →

²⁰²Rn

Radon-202

Radioactive· Half-life: 9.70 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

86

Neutrons (N)

116

Mass Number (A)

202

Atomic Mass

201.993264AMU

Spin / Parity

0+

Binding E/A

7.552keV

Natural Abundance

Trace / None

Half-life

9.70 s

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

α

78.0%

β⁺

Decay Chain

²⁰²RnRadon9.70 s

α78.0%

β⁺²⁰²At

¹⁹⁸PoPolonium1.76 min

α57.0%

β⁺¹⁹⁸Bi43.0%

¹⁹⁴PbLead10.7 min

β⁺100.0%

α¹⁹⁰Hg7.30%

¹⁹⁴TlThallium33.0 min

β⁺100.0%

α¹⁹⁰Au

¹⁹⁴HgMercury447 y

EC100.0%

¹⁹⁴AuGold1.58 d

β⁺100.0%

¹⁹⁴PtPlatinumSTABLE

7-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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