Periodic Table/Francium/²¹⁰Fr

← 209Fr211Fr →

²¹⁰Fr

Francium-210

Radioactive· Half-life: 3.18 min

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

87

Neutrons (N)

123

Mass Number (A)

210

Atomic Mass

209.996411AMU

Spin / Parity

6+

Binding E/A

7.551keV

Natural Abundance

Trace / None

Half-life

3.18 min

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

α

71.0%

β⁺

Decay Chain

²¹⁰FrFrancium3.18 min

α71.0%

β⁺²¹⁰Rn

²⁰⁶AtAstatine30.6 min

β⁺99.1%

α²⁰²Bi0.90%

²⁰⁶PoPolonium8.80 d

β⁺94.5%

α²⁰²Pb5.45%

²⁰⁶BiBismuth6.24 d

β⁺100.0%

²⁰⁶PbLeadSTABLE

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

Other Isotopes of Francium

197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233

← Back to FranciumData: IAEA NDS · ENSDF