Periodic Table/Radon/¹⁹⁹Rn

← 198Rn200Rn →

¹⁹⁹Rn

Radon-199

Radioactive· Half-life: 590 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

86

Neutrons (N)

113

Mass Number (A)

199

Atomic Mass

198.998325AMU

Spin / Parity

3/2-

Binding E/A

7.520keV

Natural Abundance

Trace / None

Half-life

590 ms

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

α

100.0%

β⁺

Decay Chain

¹⁹⁹RnRadon590 ms

α100.0%

β⁺¹⁹⁹At

¹⁹⁵PoPolonium4.64 s

α94.0%

β⁺¹⁹⁵Bi

¹⁹¹PbLead1.33 min

β⁺100.0%

α¹⁸⁷Hg0.51%

¹⁹¹TlThallium?

β⁺

¹⁹¹HgMercury49.0 min

β⁺100.0%

α¹⁸⁷Pt

¹⁹¹AuGold3.18 h

β⁺100.0%

¹⁹¹PtPlatinum2.83 d

EC100.0%

¹⁹¹IrIridiumSTABLE

8-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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