Periodic Table/Francium/²¹⁶Fr

← 215Fr217Fr →

²¹⁶Fr

Francium-216

Radioactive· Half-life: 700 ns

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

87

Neutrons (N)

129

Mass Number (A)

216

Atomic Mass

216.003190AMU

Spin / Parity

1-

Binding E/A

7.537keV

Natural Abundance

Trace / None

Half-life

700 ns

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

α

100.0%

β⁺

Decay Chain

²¹⁶FrFrancium700 ns

α100.0%

β⁺²¹⁶Rn

²¹²AtAstatine314 ms

α100.0%

β⁺²¹²Po

β⁻²¹²Rn

²⁰⁸BiBismuth368 ky

β⁺100.0%

²⁰⁸PbLeadSTABLE

4-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