Periodic Table/Iron/⁵⁵Fe

← 54Fe56Fe →

⁵⁵Fe

Iron-55

Radioactive· Half-life: 2.76 y

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

26

Neutrons (N)

29

Mass Number (A)

55

Atomic Mass

54.938291AMU

Spin / Parity

3/2-

Binding E/A

8.505keV

Natural Abundance

Trace / None

Half-life

2.76 y

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

EC

100.0%

Decay Chain

⁵⁵FeIron2.76 y

EC100.0%

⁵⁵MnManganeseSTABLE

2-step decay chain → stable · Primary path shown

Other Isotopes of Iron

45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76

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