Periodic Table/Strontium/⁷⁷Sr

← 76Sr78Sr →

⁷⁷Sr

Strontium-77

Radioactive· Half-life: 9.00 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

38

Neutrons (N)

39

Mass Number (A)

77

Atomic Mass

76.937945AMU

Spin / Parity

5/2+

Binding E/A

8.184keV

Natural Abundance

Trace / None

Half-life

9.00 s

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

β⁺

100.0%

β⁺p

0.1%

Decay Chain

⁷⁷SrStrontium9.00 s

β⁺100.0%

β⁺p⁷⁶Kr0.08%

⁷⁷RbRubidium3.78 min

β⁺100.0%

⁷⁷KrKrypton1.21 h

β⁺100.0%

⁷⁷BrBromine2.38 d

β⁺100.0%

⁷⁷SeSeleniumSTABLE

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

Other Isotopes of Strontium

73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107

← Back to StrontiumData: IAEA NDS · ENSDF