Nickel-70m

Properties and data of the isotope ^70mNi.

Contents

See also: List of individual Nickel isotopes (and general data sources).

General data

Name of the isotope:Nickel-70m; Ni-70mSymbol:^70mNi or 70m28NiMass number A:70 (= number of nucleons)Atomic number Z:28 (= number of protons)Neutrons N:42Isotopic mass:69.9364313(23) u (atomic weight of Nickel-70m)
Excitation energy: 2860.93(7) keVNuclide mass:69.9210715 u (calculated nuclear mass without electrons)Mass excess:-59.21386 MeVMass defect:0.64659606800001 u (per nucleus)Nuclear binding energy:602.30035777 MeV (per nucleus)
8.60429083 MeV (average binding energy per nucleon)Half-life:0.232(1) μsDecay constant λ:2987703.3644825 s^-1Specific activity α:2.607589928785 × 10⁺²⁸ Bq g^-1
7.047540348069 × 10⁺¹⁷ Ci g^-1Spin and parity:
(nuclear angular momentum)8+

Radioactive Decay

Half-life T_½ = 0.232(1) μs respectively 2.32 × 10^-7 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
Iso	⁷⁰Ni	100 %

Nuclear Isomers

Nuclear isomers or excited states with the activation energy in keV related to the ground state.

Nuclear Isomer	Excitation Energy	Half-life	Spin
⁷⁰Ni		6.0(3) s	0+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 42) and isobaric (same nucleon number A = 70) with Nickel-70m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 42	Isobar A = 70
21	⁶³Sc
22	⁶⁴Ti
23	⁶⁵V
24	⁶⁶Cr
25	⁶⁷Mn	⁷⁰Mn
26	⁶⁸Fe	⁷⁰Fe
27	⁶⁹Co	⁷⁰Co
28	⁷⁰Ni	⁷⁰Ni
29	⁷¹Cu	⁷⁰Cu
30	⁷²Zn	⁷⁰Zn
31	⁷³Ga	⁷⁰Ga
32	⁷⁴Ge	⁷⁰Ge
33	⁷⁵As	⁷⁰As
34	⁷⁶Se	⁷⁰Se
35	⁷⁷Br	⁷⁰Br
36	⁷⁸Kr	⁷⁰Kr
37	⁷⁹Rb
38	⁸⁰Sr
39	⁸¹Y
40	⁸²Zr
41	⁸³Nb
42	⁸⁴Mo
43	⁸⁵Tc
44	⁸⁶Ru