Titanium-44

Properties and data of the isotope ⁴⁴Ti.

Content

General data

Name of the isotope:Titanium-44; Ti-44Symbol:⁴⁴Ti or 4422TiMass number A:44 (= number of nucleons)Atomic number Z:22 (= number of protons)Neutrons N:22Isotopic mass:43.9596901(8) u (atomic weight of Titanium-44)Nuclide mass:43.9476216 u (calculated nuclear mass without electrons)Mass excess:-37.54843 MeVMass defect:0.403088756 u (per nucleus)Nuclear binding energy:375.47475768 MeV (per nucleus)
8.53351722 MeV (average binding energy per nucleon)Separation energy:S_N = 16.299(7) MeV (first neutron)
S_P = 8.6494(20) MeV (first proton)Half-life:59.1(3) aDecay constant λ:3.71899978838 × 10^-10 s^-1Specific activity α:5208451298547.4 Bq g^-1
140.76895401479 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Charge radius:3.6115(51) femtometer fmYear of discovery:1954

Radioactive Decay

Half-life T_½ = 59.1(3) a respectively 1.8638 × 10⁹ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE	⁴⁴Sc	100 %	0.2674(19) MeV

Parent Nuclides

Direct parent isotope is: ⁴⁴V.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 22) and isobaric (same nucleon number A = 44) with Titanium-44. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 22	Isobar A = 44
9	³¹F
10	³²Ne
11	³³Na
12	³⁴Mg
13	³⁵Al
14	³⁶Si	⁴⁴Si
15	³⁷P	⁴⁴P
16	³⁸S	⁴⁴S
17	³⁹Cl	⁴⁴Cl
18	⁴⁰Ar	⁴⁴Ar
19	⁴¹K	⁴⁴K
20	⁴²Ca	⁴⁴Ca
21	⁴³Sc	⁴⁴Sc
22	⁴⁴Ti	⁴⁴Ti
23	⁴⁵V	⁴⁴V
24	⁴⁶Cr	⁴⁴Cr
25	⁴⁷Mn	⁴⁴Mn
26	⁴⁸Fe
27	⁴⁹Co
28	⁵⁰Ni