Periodic Table/Polonium/²¹⁷Po

← 216Po218Po →

²¹⁷Po

Polonium-217

Radioactive· Half-life: 1.53 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

84

Neutrons (N)

133

Mass Number (A)

217

Atomic Mass

217.006316AMU

Spin / Parity

9/2+

Binding E/A

7.544keV

Natural Abundance

Trace / None

Half-life

1.53 s

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

α

97.5%

β⁻

2.5%

Decay Chain

²¹⁷PoPolonium1.53 s

α97.5%

β⁻²¹⁷At2.50%

²¹³PbLead10.2 min

β⁻100.0%

²¹³BiBismuth45.6 min

β⁻97.9%

α²⁰⁹Tl2.09%

²¹³PoPolonium3.71 μs

α100.0%

²⁰⁹PbLead3.23 h

β⁻100.0%

²⁰⁹BiBismuth20100000000 Gy

α100.0%

²⁰⁵TlThalliumSTABLE

7-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

← Back to PoloniumData: IAEA NDS · ENSDF