Periodic Table/Francium/¹⁹⁸Fr

← 197Fr199Fr →

¹⁹⁸Fr

Francium-198

Radioactive· Half-life: 15.0 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

87

Neutrons (N)

111

Mass Number (A)

198

Atomic Mass

198.010282AMU

Spin / Parity

3+

Binding E/A

7.455keV

Natural Abundance

Trace / None

Half-life

15.0 ms

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

α

100.0%

Decay Chain

¹⁹⁸FrFrancium15.0 ms

α100.0%

¹⁹⁴AtAstatine286 ms

α100.0%

β⁺¹⁹⁴Po8.30%

¹⁹⁰BiBismuth6.30 s

α77.0%

β⁺¹⁹⁰Pb23.0%

¹⁸⁶TlThallium3.50 s

β⁺

α¹⁸²Au

¹⁸⁶HgMercury1.38 min

β⁺100.0%

α¹⁸²Pt0.02%

¹⁸⁶AuGold10.7 min

β⁺100.0%

α¹⁸²Ir0.00%

¹⁸⁶PtPlatinum2.08 h

β⁺100.0%

α¹⁸²Os1.40%

¹⁸⁶IrIridium16.6 h

β⁺100.0%

¹⁸⁶OsOsmium2000000 Gy

α100.0%

¹⁸²WTungstenSTABLE

10-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