Periodic Table/Polonium/²²⁵Po

← 224Po226Po →

²²⁵Po

Polonium-225

Radioactive

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

84

Neutrons (N)

141

Mass Number (A)

225

Atomic Mass

225.037123AMU

Spin / Parity

3/2+

Binding E/A

7.435keV

Natural Abundance

Trace / None

Half-life

Unknown

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

β⁻

Decay Chain

²²⁵PoPolonium?

β⁻

²²⁵AtAstatine?

β⁻

β⁻n²²⁴Rn

²²⁵RnRadon4.66 min

β⁻100.0%

²²⁵FrFrancium3.95 min

β⁻100.0%

²²⁵RaRadium14.8 d

β⁻100.0%

²²⁵AcActinium9.92 d

α100.0%

¹⁴C²¹¹Bi5.30%

²²¹FrFrancium4.80 min

α100.0%

¹⁴C²⁰⁷Tl8.80%

β⁻²²¹Ra0.00%

²¹⁷AtAstatine32.6 ms

α100.0%

β⁻²¹⁷Rn0.01%

²¹³BiBismuth45.6 min

β⁻97.9%

α²⁰⁹Tl2.09%

²¹³PoPolonium3.71 μs

α100.0%

²⁰⁹PbLead3.23 h

β⁻100.0%

²⁰⁹BiBismuth20100000000 Gy

α100.0%

²⁰⁵TlThalliumSTABLE

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

Other Isotopes of Polonium

186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227

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