Periodic Table/Francium/²¹⁹Fr

← 218Fr220Fr →

²¹⁹Fr

Francium-219

Radioactive· Half-life: 22.5 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

87

Neutrons (N)

132

Mass Number (A)

219

Atomic Mass

219.009251AMU

Spin / Parity

5/2-

Binding E/A

7.518keV

Natural Abundance

Trace / None

Half-life

22.5 ms

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

α

100.0%

Decay Chain

²¹⁹FrFrancium22.5 ms

α100.0%

²¹⁵AtAstatine37.0 μs

α100.0%

²¹¹BiBismuth2.14 min

α100.0%

β⁻²¹¹Po0.28%

²⁰⁷TlThallium4.77 min

β⁻100.0%

²⁰⁷PbLeadSTABLE

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