Titanium-51

Properties and data of the isotope ⁵¹Ti.

Content

General data

Name of the isotope:Titanium-51; Ti-51Symbol:⁵¹Ti or 5122TiMass number A:51 (= number of nucleons)Atomic number Z:22 (= number of protons)Neutrons N:29Isotopic mass:50.9466096(5) u (atomic weight of Titanium-51)Nuclide mass:50.9345411 u (calculated nuclear mass without electrons)Mass excess:-49.73284 MeVMass defect:0.476823668 u (per nucleus)Nuclear binding energy:444.1583858 MeV (per nucleus)
8.70898796 MeV (average binding energy per nucleon)Separation energy:S_N = 6.3725(5) MeV (first neutron)
S_P = 12.474(15) MeV (first proton)Half-life:5.76(1) minDecay constant λ:0.0020056342030091 s^-1Specific activity α:2.415642336805 × 10⁺¹⁹ Bq g^-1
652876307.24476 Ci g^-1Spin and parity:
(nuclear angular momentum)3/2-Year of discovery:1947

Radioactive Decay

Half-life T_½ = 5.76(1) min (minutes) respectively 3.456 × 10² seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	⁵¹V	100 %	2.4710(6) MeV

Parent Nuclides

Direct parent isotope is: ⁵¹Sc.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 29) and isobaric (same nucleon number A = 51) with Titanium-51. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 29	Isobar A = 51
13	⁴²Al
14	⁴³Si
15	⁴⁴P
16	⁴⁵S
17	⁴⁶Cl	⁵¹Cl
18	⁴⁷Ar	⁵¹Ar
19	⁴⁸K	⁵¹K
20	⁴⁹Ca	⁵¹Ca
21	⁵⁰Sc	⁵¹Sc
22	⁵¹Ti	⁵¹Ti
23	⁵²V	⁵¹V
24	⁵³Cr	⁵¹Cr
25	⁵⁴Mn	⁵¹Mn
26	⁵⁵Fe	⁵¹Fe
27	⁵⁶Co	⁵¹Co
28	⁵⁷Ni	⁵¹Ni
29	⁵⁸Cu
30	⁵⁹Zn
31	⁶⁰Ga
32	⁶¹Ge
33	⁶²As
34	⁶³Se