Periodic Table/Calcium/⁵⁵Ca

← 54Ca56Ca →

⁵⁵Ca

Calcium-55

Radioactive· Half-life: 22.0 ms

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

20

Neutrons (N)

35

Mass Number (A)

55

Atomic Mass

54.979978AMU

Spin / Parity

5/2-

Binding E/A

7.940keV

Natural Abundance

Trace / None

Half-life

22.0 ms

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

β⁻

100.0%

β⁻n

2n

Decay Chain

⁵⁵CaCalcium22.0 ms

β⁻100.0%

β⁻n⁵⁴Sc

2n⁵³Ca

⁵⁵ScScandium96.0 ms

β⁻100.0%

β⁻n⁵⁴Ti17.0%

2n⁵³Sc

⁵⁵TiTitanium1.30 s

β⁻100.0%

β⁻n⁵⁴V

⁵⁵VVanadium6.54 s

β⁻100.0%

⁵⁵CrChromium3.50 min

β⁻100.0%

⁵⁵MnManganeseSTABLE

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

Other Isotopes of Calcium

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61

← Back to CalciumData: IAEA NDS · ENSDF