Periodic Table/Francium/²⁰⁶Fr

← 205Fr207Fr →

²⁰⁶Fr

Francium-206

Radioactive

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

87

Neutrons (N)

119

Mass Number (A)

206

Atomic Mass

205.998661AMU

Spin / Parity

3+

Binding E/A

7.531keV

Natural Abundance

Trace / None

Half-life

Unknown

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

α

88.4%

β⁺

11.6%

Decay Chain

²⁰⁶FrFrancium?

α88.4%

β⁺²⁰⁶Rn11.6%

²⁰²AtAstatine3.07 min

β⁺88.0%

α¹⁹⁸Bi12.0%

²⁰²PoPolonium44.6 min

β⁺98.1%

α¹⁹⁸Pb1.92%

²⁰²BiBismuth1.72 h

β⁺100.0%

α¹⁹⁸Tl1.00%

²⁰²PbLead52.5 ky

EC100.0%

²⁰²TlThallium12.3 d

EC100.0%

²⁰²HgMercurySTABLE

7-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