Periodic Table/Francium/²⁰²Fr

← 201Fr203Fr →

²⁰²Fr

Francium-202

Radioactive· Half-life: 372 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

87

Neutrons (N)

115

Mass Number (A)

202

Atomic Mass

202.003330AMU

Spin / Parity

3+

Binding E/A

7.499keV

Natural Abundance

Trace / None

Half-life

372 ms

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

α

100.0%

β⁺

Decay Chain

²⁰²FrFrancium372 ms

α100.0%

β⁺²⁰²Rn

¹⁹⁸AtAstatine4.47 s

α97.0%

β⁺¹⁹⁸Po

¹⁹⁴BiBismuth1.58 min

β⁺100.0%

α¹⁹⁰Tl0.46%

¹⁹⁴PbLead10.7 min

β⁺100.0%

α¹⁹⁰Hg7.30%

¹⁹⁴TlThallium33.0 min

β⁺100.0%

α¹⁹⁰Au

¹⁹⁴HgMercury447 y

EC100.0%

¹⁹⁴AuGold1.58 d

β⁺100.0%

¹⁹⁴PtPlatinumSTABLE

8-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