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aluminium 28 (28Al)
subject			fact

aluminium 28	has symbol 28Al
	has nuclear magnetic moment μ = 3.24
	has nuclear spin I = 3+
	has decay mode β- (4.642 Mev)
	has decay mode γ
	has half life 2.25 minutes
	has number of nucleons 28
	has number of neutrons 15
	has atomic mass 27.981910
	is an instance of aluminium
aluminium	stable isotope aluminium 27
	has reserves 6 × 106 tonnes
	has main mining area Surinam, Jamaica, Ghana, Indonesia, Russia
	has mineral bauxite, boehmite, diaspore, gibbsite, andalusite, corundum, sillimanite, topaz
	has neutron scattering length 0.3449 × 10-12 cm
	has electron affinity 44 kJ mol-1 from Al to Al-
	has level in human muscle 0.7 - 28 p.p.m.
	has level in human liver 3 - 23 p.p.m.
	has level in human bone 4 - 27 p.p.m.
	has level in human blood 0.39 mg dm-3
	has toxic intake 5 g
	has poisson's ratio 0.345 GPa
	has bulk modulus 75.2 GPa
	has rigidity modulus 26.2 GPa
	has young's modulus 70.6 GPa
	has mass magnetic susceptibility 7.7 × 109 kg-1 m3 for solid
	has electrical resistivity 2.6548 × 108 Ω m at 293 K
	has van der Waals radii 205 pm
	has covalent radii 125 pm
	has longest lived isotope aluminium 27 which is stable
	has isotope mass range 22 to 31
	has number of isotopes 11
	has pronunciation al-oo-min-iuhm
	has name origin alumen = alum from latin
	has discovery location Copenhagen, Denmark
	has abundance 3.3 × 106 in Sun relative to H = 1 × 1012
	has abundance 82000 p.p.m. in Earth's crust
	has abundance 9.7 × 10-4 p.p.m. in Atlantic surface seawater
	has abundance 5.2 × 10-4 p.p.m. in deep Atlantic seawater
	has abundance 1.3 × 10-4 p.p.m. in Pacific surface seawater
	has abundance 0.13 × 10-4 p.p.m. in deep Pacific seawater
	has specimen foil, granules, ingots, pellets, powder, rod, shot or wire. Safe. Aluminum powder can react dangerously with other materials.
	has world production 15 × 106 tonnes per year
	has chief source bauxite
	has mass absorption coefficient 48.6 cm2 g-1 for CuKα X-ray diffraction
	has mass absorption coefficient 5.16 cm2 g-1 for MoKα X-ray diffraction
	has space group Fm3m
	has crystal cell dimension a = 404.959 pm
	has crystal type f.c.c.
	has atomic emission line 308.215 nm for Al I
	has atomic emission line 309.271 nm for Al I (used in atom absorption spectrometry)
	has atomic emission line 309.281 nm for Al I (used in atom absorption spectrometry)
	has atomic emission line 394.401 nm for Al I
	has atomic emission line 396.152 nm for Al I (strong)
	has term symbol 2P1/2 in ground state
	has electron configuration [Ne]3s23p1 in ground state
	has mass of element in person 60 mg for a 70 kg average person
	has daily dietary intake 2.45 mg
	has hazard accumulates in the body from daily intake, compounds are used as food additives and in indigestion tablets
	has biological role none
	has linear expansion coefficient 23.03 K-1
	has thermal conductivity 237 W m-1 K-1 at 300 K
	has molar volume 10.00 cm3
	has heat capacity 24.35 J K-1 mol-1 for solid at constant pressure 0.1 MPa at 298.15 K
	has heat capacity 21.38 J K-1 mol-1 for gas at constant pressure 0.1 MPa at 298.15 K
	has heat of vaporization 293.72 kJ mol-1
	has heat of fusion 10.67 kJ mol-1
	has boiling point 2740 K
	has melting point 933.52 K
	has electronegativity 1.61 Pauling
	has relative atomic mass 26.981539 in units of 12C = 12.000
	has ionic radii 57 pm for Al3+
	has atomic radii 143 pm
	has number of protons 13
has registry number 7429-90-5 for Chemical Abstracts System database
has density 2698 kg m-3 for solid at 293 K
has density 2390 kg m-3 for liquid at 933.52 K melting point
has ocean oxidation state III
has ocean residence time 150 years
has atomic number 13
reacts with air to produce a thin protective oxide layer
has discovery date 1825
has discoverer Oersted
has uses vehicle, aircraft and construction industries
has image
accumulating oceanic element	has ocean concentration depth indenpendent
group III element	has group 13
element	is a part of Universe
	has synonym atom
oceanic element	has occurrence ocean
particle	obeys uncertainty principle
	has frequency inversely proportional to the wavelength
	has wavelength inversely proportional to its momentum
	has charge
	has mass
physical object	has location or center of gravity
	has angular momentum
	has velocity
	has momentum
	has temperature
	has volume
	has extent
	has material

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