Periodic Table/Osmium/²⁰³Os

← 202Os

²⁰³Os

Osmium-203

Radioactive

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

76

Neutrons (N)

127

Mass Number (A)

203

Atomic Mass

202.992195AMU

Spin / Parity

9/2+

Binding E/A

7.623keV

Natural Abundance

Trace / None

Half-life

Unknown

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

β⁻

β⁻n

Decay Chain

²⁰³OsOsmium?

β⁻

β⁻n²⁰²Ir

²⁰³IrIridium?

β⁻

²⁰³PtPlatinum22.0 s

β⁻100.0%

²⁰³AuGold1.00 min

β⁻100.0%

²⁰³HgMercury46.6 d

β⁻100.0%

²⁰³TlThalliumSTABLE

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

Other Isotopes of Osmium

161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203

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