223Ra

Radium-223

Radioactive· Half-life: 11.4 d

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

88

Neutrons (N)

135

Mass Number (A)

223

Atomic Mass

223.018501AMU

Spin / Parity

3/2+

Binding E/A

7.484keV

Natural Abundance

Trace / None

Half-life

11.4 d

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

α
100.0%
¹⁴C
8.9%

Decay Chain

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

Medical Applications

TherapeuticRa-223

Treatment of bone metastases (Xofigo)

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