Periodic Table/Radium/²⁰⁴Ra

← 203Ra205Ra →

²⁰⁴Ra

Radium-204

Radioactive· Half-life: 60.0 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

88

Neutrons (N)

116

Mass Number (A)

204

Atomic Mass

204.006507AMU

Spin / Parity

0+

Binding E/A

7.484keV

Natural Abundance

Trace / None

Half-life

60.0 ms

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

α

100.0%

β⁺

Decay Chain

²⁰⁴RaRadium60.0 ms

α100.0%

β⁺²⁰⁴Fr

²⁰⁰RnRadon1.09 s

α92.0%

β⁺²⁰⁰At

¹⁹⁶PoPolonium5.63 s

α94.0%

β⁺¹⁹⁶Bi

¹⁹²PbLead3.50 min

β⁺100.0%

α¹⁸⁸Hg0.01%

¹⁹²TlThallium9.60 min

β⁺100.0%

¹⁹²HgMercury4.85 h

EC100.0%

α¹⁸⁸Pt

¹⁹²AuGold4.94 h

β⁺100.0%

¹⁹²PtPlatinumSTABLE

8-step decay chain → stable · Primary path shown · branching ratios indicated

Other Isotopes of Radium

201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235

← Back to RadiumData: IAEA NDS · ENSDF