Ruthenium-114

Properties and data of the isotope ¹¹⁴Ru.

Contents

General data

Name of the isotope:Ruthenium-114; Ru-114Symbol:¹¹⁴Ru or 11444RuMass number A:114 (= number of nucleons)Atomic number Z:44 (= number of protons)Neutrons N:70Isotopic mass:113.924614(4) u (atomic weight of Ruthenium-114)Nuclide mass:113.9004777 u (calculated nuclear mass without electrons)Mass excess:-70.22161 MeVMass defect:1.026231528 u (per nucleus)Nuclear binding energy:955.92851094 MeV (per nucleus)
8.38533782 MeV (average binding energy per nucleon)Separation energy:S_N = 6.43(4) MeV (first neutron)
S_P = 14.699(5) MeV (first proton)Half-life:0.54(3) sDecay constant λ:1.2836058899258 s^-1Specific activity α:6.840757059980 × 10⁺²¹ Bq g^-1
184885325945.41 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Year of discovery:1991

Radioactive Decay

Half-life T_½ = 0.54(3) s respectively 5.4 × 10^-1 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	¹¹⁴Rh	100 %	5.49(7) MeV

Parent Nuclides

Direct parent isotope is: ²⁴⁸Cm.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 70) and isobaric (same nucleon number A = 114) with Ruthenium-114. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 70	Isobar A = 114
39	¹⁰⁹Y
40	¹¹⁰Zr
41	¹¹¹Nb	¹¹⁴Nb
42	¹¹²Mo	¹¹⁴Mo
43	¹¹³Tc	¹¹⁴Tc
44	¹¹⁴Ru	¹¹⁴Ru
45	¹¹⁵Rh	¹¹⁴Rh
46	¹¹⁶Pd	¹¹⁴Pd
47	¹¹⁷Ag	¹¹⁴Ag
48	¹¹⁸Cd	¹¹⁴Cd
49	¹¹⁹In	¹¹⁴In
50	¹²⁰Sn	¹¹⁴Sn
51	¹²¹Sb	¹¹⁴Sb
52	¹²²Te	¹¹⁴Te
53	¹²³I	¹¹⁴I
54	¹²⁴Xe	¹¹⁴Xe
55	¹²⁵Cs	¹¹⁴Cs
56	¹²⁶Ba	¹¹⁴Ba
57	¹²⁷La
58	¹²⁸Ce
59	¹²⁹Pr
60	¹³⁰Nd
61	¹³¹Pm
62	¹³²Sm
63	¹³³Eu
64	¹³⁴Gd
65	¹³⁵Tb