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physical object > natural object > collection of particles > phase of matter > solid > metal > actinide > actinium > actinium 227
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actinium 227
(227Ac)
subjectfact 
actinium 227has symbol 227Ac2001-09-27 09:28:35.0
has decay products thorium 2272001-09-27 09:28:35.0
has decay products radium 2232001-09-27 09:28:35.0
has NMR frequency 13.1 MHz where 1H = 100 MHz; 2.3488 T2001-09-27 09:28:35.0
has nuclear quadrupole moment 1.7 × 10-28 m22001-09-27 09:28:35.0
has magnetogyric ratio 3.5 × 107 rad T-1 s-12001-09-27 09:28:35.0
has NMR receptivity where 13C = 1.002001-09-27 09:28:35.0
has relative NMR sensitivity where 1H = 1.002001-09-27 09:28:35.0
has thermal neutron capture cross section 515 barns2001-09-27 09:28:35.0
has nuclear magnetic moment μ = +1.12001-09-27 09:28:35.0
has nuclear spin I = 3/2-2001-09-27 09:28:35.0
has decay mode β- (0.0410 Mev) 98.620%has source: G.I.Novikova, E.A.Volkova, L.I.Goldin, D.M.Ziv, E.F.Tretyakov 1959, Zh.Eksp.Teor.Fiz. 37, 928; Sov.Phys.JETP 10, 663, 2001-09-27 09:28:35.0
has decay mode α (5.043 Mev) 1.380%has source: A.Rytz, R.A.P.Wiltshire, M.King 1986, Nucl.Instrum.Methods Phys.Res. A253, 47, 2001-09-27 09:28:35.0
has decay mode γ2001-09-27 09:28:35.0
has half life 21.773 years2001-09-27 09:28:35.0
has number of nucleons 2272001-09-27 09:28:35.0
has number of neutrons 1382001-09-27 09:28:35.0
has atomic mass 227.0277502001-09-27 09:28:35.0
has uses Nuclear Magnetic Resonance2001-09-27 09:28:35.0
is an instance of actiniumhas URL: http://nucleardata.nuclear.lu.se/nucleardata/toi/nuclide.asp?iZA=890227, 2001-09-27 09:28:35.0
actiniumhas longest lived isotope actinium 2272001-09-27 09:28:34.0
has isotope mass range 209 to 2322001-09-27 09:28:34.0
has number of isotopes 26has URL: http://ie.lbl.gov/education/parent/Ac_iso.htm, 2001-09-27 09:28:34.0
has pronunciation ak-tin-iuhm2001-09-27 09:28:34.0
has name origin aktinos from Greek word for 'ray'2001-09-27 09:28:34.0
has discovery location Paris, France2001-09-27 09:28:34.0
has abundance n.a. in Sun relative to H = 1 × 10122001-09-27 09:28:34.0
has abundance minute traces in Earth's crust2001-09-27 09:28:34.0
has abundance nil in seawater2001-09-27 09:28:34.0
has specimen not commerecially available2001-09-27 09:28:34.0
has world production probably less than a gram2001-09-27 09:28:34.0
has chief source uranium ore contain 0.2 p.p.m.2001-09-27 09:28:34.0
has mass absorption coefficient cm2 g-1 for CuKα X-ray diffraction2001-09-27 09:28:34.0
has mass absorption coefficient cm2 g-1 for MoKα X-ray diffraction2001-09-27 09:28:34.0
has space group Fm3m2001-09-27 09:28:34.0
has crystal cell dimension a = 531.1 pm2001-09-27 09:28:34.0
has crystal type f.c.c.2001-09-27 09:28:34.0
has atomic emission line 383.312 nm for Ac II2001-09-27 09:28:34.0
has atomic emission line 408.844 nm for Ac II2001-09-27 09:28:34.0
has atomic emission line 416.840 nm for Ac II (strong)2001-09-27 09:28:34.0
has atomic emission line 438.641 nm for Ac II (strong)2001-09-27 09:28:34.0
has atomic emission line 450.720 nm for Ac II2001-09-27 09:28:34.0
has atomic emission line 591.085 nm for Ac II2001-09-27 09:28:34.0
has term symbol 2D3/2 in ground state2001-09-27 09:28:34.0
has electron configuration [Rn]6d17s2 in ground state2001-09-27 09:28:34.0
has mass of element in person nil for a 70 kg average person2001-09-27 09:28:34.0
has daily dietary intake nil2001-09-27 09:28:34.0
has level in humans nil2001-09-27 09:28:34.0
has hazard never encountered normally, dangerous because it is a powerful source of α-radiation, element found only inside nuclear facilities or research laboratories2001-09-27 09:28:34.0
has biological role none2001-09-27 09:28:34.0
has linear expansion coefficient 14.9 K-12001-09-27 09:28:34.0
has thermal conductivity 12 W m-1 K-1 at 300 K2001-09-27 09:28:34.0
has molar volume 22.6 cm32001-09-27 09:28:34.0
has heat capacity 27.2 J K-1 mol-1 for solid at constant pressure 0.1 MPa at 298.15 K2001-09-27 09:28:34.0
has heat capacity 20.84 J K-1 mol-1 for gas at constant pressure 0.1 MPa at 298.15 K2001-09-27 09:28:34.0
has heat of sublimation 51.9 ± 0.5 kJ mol-12001-09-27 09:28:34.0
has heat of vaporization 418 kJ mol-12001-09-27 09:28:34.0
has heat of fusion 14.2 kJ mol-12001-09-27 09:28:34.0
has boiling point 3470 ± 300 K2001-09-27 09:28:34.0
has melting point 1320 ± 50 K2001-09-27 09:28:34.0
has electronegativity 1.1 Pauling2001-09-27 09:28:34.0
has relative atomic mass 227.0728 for 227Ac in units of 12C = 12.0002001-09-27 09:28:33.0
has ionic radii 118 pm for Ac3+2001-09-27 09:28:33.0
has atomic radii 188 pm2001-09-27 09:28:33.0
has number of protons 892001-09-27 09:28:33.0
has registry number 7440-34-8 for Chemical Abstracts System databasehas URL: http://info.cas.org, 2001-09-27 09:28:33.0
has density 10060 kg m-3 for solid at 293 K2001-09-27 09:28:34.0
has synthesis mechanism decay of uranium 2352001-09-27 09:28:34.0
has synthesis mechanism bombardment of radium 236 with neutrons2001-09-27 09:28:34.0
has atomic number 892001-09-27 09:28:33.0
reacts with water to release hydrogen gas2001-09-27 09:28:33.0
has discovery date 18992001-09-27 09:28:34.0
has discoverer Andre Debierne2001-09-27 09:28:34.0
has image 2001-09-27 09:28:32.0
actinidehas filling orbital 5f2001-09-27 09:28:22.0
radioactive particlehas desintegration energy the total energy produced when the particle decays2001-09-27 09:28:02.0
has lifetime The average time in which a particle decays2001-09-27 09:28:02.0
elementis a part of Universe2001-09-27 09:32:17.0
has synonym atom2001-09-27 09:28:19.0
particleobeys uncertainty principle2001-09-27 09:28:02.0
has frequency inversely proportional to the wavelength2001-09-27 09:28:02.0
has wavelength inversely proportional to its momentum2001-09-27 09:28:02.0
has charge2001-09-27 09:28:01.0
has mass2001-09-27 09:28:02.0
column grouped elementhas group a column number in the table of the elements2001-09-27 09:28:24.0
physical objecthas location or center of gravity2001-09-27 09:27:27.0
has angular momentum2001-09-27 09:27:27.0
has velocity2001-09-27 09:27:27.0
has momentum2001-09-27 09:27:27.0
has temperature2001-09-27 09:27:27.0
has volume2001-09-27 09:27:27.0
has extent2001-09-27 09:27:27.0
has material2001-09-27 09:27:27.0

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