Alumini (Al)

metallic chemical element of silvery appearance with symbol Al and atomic number 13

Atomic Number	13
Atomic Weight	26.9815385
mass number	27

Group	13
Period	3
Block	p

proton	13 p⁺
neutron	14 n⁰
electron	13 e^-

Proprietat Fisica

Rai Atomic	125 pm 239 pm
molar volume	10 cm³/mol
covalent radius	126 pm 113 pm 111 pm 135 pm 121 pm
Metallic Radius	125 pm 143 pm
ionic radius	39 pm 48 pm 53.5 pm
Crystal Radius	53 pm 62 pm 67.5 pm
Rai de van der Waals	210 pm 439 pm 184 pm 236 pm 184 pm 449.9 pm
densitat	2.7 g/cm³ 2375 kg/m³

Chemical Property

{ERROR}

energia

proton affinity
electron affinity	0.43283 eV/particle
ionization energy	5.9857684 eV/particle 18.82855 eV/particle 28.44764 eV/particle 119.9924 eV/particle 153.8252 eV/particle 190.49 eV/particle 241.76 eV/particle 284.638 eV/particle 330.212 eV/particle 398.65 eV/particle 442.005 eV/particle 2085.97693 eV/particle 2304.14 eV/particle

enthalpy of vaporization	284.1 kJ/mol
enthalpy of fusion	10.75 kJ/mol
standard enthalpy of formation	330.9 kJ/mol
electron

electron shell	2, 8, 3

valence electron	3 ⓘ

electron configuration	[Ne] 3s² 3p¹ⓘ 1s² 2s² 2p⁶ 3s² 3p¹

oxidation number	-2, -1, 0, 1, 2, 3
Electronegativitat	9.539 eV/particle 0.150078 1.61
Electrophilicity Index	0.9274010094475963 eV/particle
fundamental state of matter

estat de la matèria
gaseous state of matter
Boiling Point	2792.15 K
Melting Point	933.473 K
critical pressure
critical temperature	6700.15 K
Ponch triple
appearance
Color	Black #808090 #bfa6a6 #bfa6a6
appearance	silvery gray metallic
Indici de refraccion
thermodynamic material property
Thermal Conductivity	237 W/(m K)
thermal expansion	0.0000231 1/K
molar heat capacity	24.2 J/(mol K)
Specific Heat Capacity	0.897 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
electrical conductivity	38 MS/m
electrical resistivity	0.000000026 Ω*m
superconductivity	1.175 K
magnetism
type	paramagnetic
magnetic susceptibility (Mass)	0.0000000078 m³/Kg
magnetic susceptibility (Molar)	0.00000000021 m³/mol
magnetic susceptibility (Volume)	0.0000211
magnetic ordering
Curie temperature
Néel temperature
estructura
Crystal Structure	{ERROR}
lattice constant	4.05 Å
Lattice Angles	π/2, π/2, π/2
mechanical property
Duretat	245 MPa 2.75 MPa 167 MPa
bulk modulus	76 GPa
shear modulus	26 GPa
Young's modulus	70 GPa
Poisson's ratio	0.35
speed of sound	5100 m/s
classification
Category	Actinides, Poor metals
CAS Group	IIIB
IUPAC Group	IIIA
Glawe Number	78
Mendeleev Number	82
Pettifor Number	80
Geochemical Class	major
Goldschmidt classification	litophile

other

Gas Basicity
polarizability	57.8 ± 1 a₀
C6 Dispersion Coefficient	528 a₀ 520 a₀
allotrope
Neutron cross section	0.233
Neutron Mass Absorption	0.03
quantum number	2P1/2
space group	225 (Fm_3m)

Isotopes of Aluminum

Stable Isotopes	1
Unstable Isotopes	22
Natural Isotopes	1

²¹Al

mass number	21
neutron number	8
Relative Atomic Mass	21.029082 ± 0.000644 Da
g-factor
natural abundance
Radioactivitat	☢️ radioactive element
Semivida
Espin	5/2
nuclear quadrupole moment
data de descobèrta
parity	+

decay mode	intensity
p (proton emission)

²²Al

mass number	22
neutron number	9
Relative Atomic Mass	22.01954 ± 0.00043 Da
g-factor
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	91.1 ± 0.5 ms
Espin	4
nuclear quadrupole moment
data de descobèrta	1982
parity

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	55%
2p (2-proton emission)	1.1%
β⁺α (β⁺-delayed α emission)	0.038%

²³Al

mass number	23
neutron number	10
Relative Atomic Mass	23.007244351 ± 0.00000037 Da
g-factor	1.556 ± 0.008
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	446 ± 6 ms
Espin	5/2
nuclear quadrupole moment
data de descobèrta	1969
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	1.22%

²⁴Al

mass number	24
neutron number	11
Relative Atomic Mass	23.999947598 ± 0.000000244 Da
g-factor
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	2.053 ± 0.004 s
Espin	4
nuclear quadrupole moment
data de descobèrta	1953
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺α (β⁺-delayed α emission)	0.035%
β⁺ p (β⁺-delayed proton emission)	0.0016%

²⁵Al

mass number	25
neutron number	12
Relative Atomic Mass	24.990428308 ± 0.000000069 Da
g-factor	1.45788 ± 0.00048
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	7.1666 ± 0.0023 s
Espin	5/2
nuclear quadrupole moment	0.24 ± 0.02
data de descobèrta	1953
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

²⁶Al

mass number	26
neutron number	13
Relative Atomic Mass	25.986891876 ± 0.000000071 Da
g-factor	0.5606 ± 0.0008
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	717 ± 24 ky
Espin	5
nuclear quadrupole moment	0.26 ± 0.03
data de descobèrta	1934
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

²⁷Al

mass number	27
neutron number	14
Relative Atomic Mass	26.981538408 ± 0.00000005 Da
g-factor	1.45628 ± 0.000008
natural abundance	100
Radioactivitat	stable isotope
Semivida	Not Radioactive ☢️
Espin	5/2
nuclear quadrupole moment	0.1466 ± 0.001
data de descobèrta	1922
parity	+

²⁸Al

mass number	28
neutron number	15
Relative Atomic Mass	27.981910009 ± 0.000000052 Da
g-factor	1.0803333333333 ± 0.0016666666666667
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	2.245 ± 0.005 m
Espin	3
nuclear quadrupole moment	0.172 ± 0.012
data de descobèrta	1934
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁹Al

mass number	29
neutron number	16
Relative Atomic Mass	28.980453164 ± 0.00000037 Da
g-factor
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	6.56 ± 0.06 m
Espin	5/2
nuclear quadrupole moment
data de descobèrta	1939
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

³⁰Al

mass number	30
neutron number	17
Relative Atomic Mass	29.982969171 ± 0.000002077 Da
g-factor	1.004 ± 0.0023333333333333
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	3.62 ± 0.06 s
Espin	3
nuclear quadrupole moment
data de descobèrta	1961
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

³¹Al

mass number	31
neutron number	18
Relative Atomic Mass	30.983949754 ± 0.0000024 Da
g-factor	1.5328 ± 0.002
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	644 ± 25 ms
Espin	5/2
nuclear quadrupole moment	0.134 ± 0.002
data de descobèrta	1971
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	1.6%

³²Al

mass number	32
neutron number	19
Relative Atomic Mass	31.988084338 ± 0.0000077 Da
g-factor	1.953 ± 0.002
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	32.6 ± 0.5 ms
Espin	1
nuclear quadrupole moment	0.0255 ± 0.0003
data de descobèrta	1971
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.7%

³³Al

mass number	33
neutron number	20
Relative Atomic Mass	32.990877685 ± 0.0000075 Da
g-factor	1.636 ± 0.002
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	41.46 ± 0.09 ms
Espin	5/2
nuclear quadrupole moment	0.141 ± 0.003
data de descobèrta	1971
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	8.5%

³⁴Al

mass number	34
neutron number	21
Relative Atomic Mass	33.996781924 ± 0.000002259 Da
g-factor	0.53925 ± 0.004
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	53.73 ± 0.13 ms
Espin	4
nuclear quadrupole moment
data de descobèrta	1977
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	26%
2n (2-neutron emission)

³⁵Al

mass number	35
neutron number	22
Relative Atomic Mass	34.999759816 ± 0.0000079 Da
g-factor
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	38.16 ± 0.21 ms
Espin	5/2
nuclear quadrupole moment
data de descobèrta	1979
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	35.8%
2n (2-neutron emission)

³⁶Al

mass number	36
neutron number	23
Relative Atomic Mass	36.006388 ± 0.0001605 Da
g-factor
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	90 ± 40 ms
Espin
nuclear quadrupole moment
data de descobèrta	1979
parity

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	31%
2n (2-neutron emission)

³⁷Al

mass number	37
neutron number	24
Relative Atomic Mass	37.010531 ± 0.0001935 Da
g-factor
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	11.4 ± 0.3 ms
Espin	5/2
nuclear quadrupole moment
data de descobèrta	1979
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	52%
2n (2-neutron emission)	1%

³⁸Al

mass number	38
neutron number	25
Relative Atomic Mass	38.017681 ± 0.000161 Da
g-factor	0
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	9 ± 0.7 ms
Espin	0
nuclear quadrupole moment	0
data de descobèrta	1989
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	84%
2n (2-neutron emission)

³⁹Al

mass number	39
neutron number	26
Relative Atomic Mass	39.02307 ± 0.000322 Da
g-factor
natural abundance
Radioactivitat	☢️ radioactive element
Semivida	7.6 ± 1.6 ms
Espin	5/2
nuclear quadrupole moment
data de descobèrta	1989
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	97%
2n (2-neutron emission)

⁴⁰Al

mass number	40
neutron number	27
Relative Atomic Mass	40.03094 ± 0.000322 Da
g-factor
natural abundance
Radioactivitat	☢️ radioactive element
Semivida
Espin
nuclear quadrupole moment
data de descobèrta	1996
parity

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁴¹Al

mass number	41
neutron number	28
Relative Atomic Mass	41.037134 ± 0.000429 Da
g-factor
natural abundance
Radioactivitat	☢️ radioactive element
Semivida
Espin	5/2
nuclear quadrupole moment
data de descobèrta	1997
parity	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁴²Al

mass number	42
neutron number	29
Relative Atomic Mass	42.045078 ± 0.000537 Da
g-factor
natural abundance
Radioactivitat	☢️ radioactive element
Semivida
Espin
nuclear quadrupole moment
data de descobèrta	2007
parity

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁴³Al

mass number	43
neutron number	30
Relative Atomic Mass	43.05182 ± 0.000644 Da
g-factor
natural abundance
Radioactivitat	☢️ radioactive element
Semivida
Espin	5/2
nuclear quadrupole moment
data de descobèrta	2007
parity	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

istòria

descobridor o inventaire	Hans Christian Oersted
luòc de descobèrta	Denmark
data de descobèrta	1825
Etimologia	Latin: alumen, aluminis, (alum).
pronunciation	ah-LOO-men-em (English)

source

Abundance
Abundance in Earth's crust	82300 mg/kg
natural abundance (Ocean)	0.002 mg/L
natural abundance (còs uman)	0.00009 %
natural abundance (meteoroid)	0.91 %
natural abundance (Solelh)	0.006 %
Abundance in Universe	0.005 %

Nuclear Screening Constants

1	s	0.409
2	p	4.0366
2	s	4.7864
3	p	8.9344
3	s	8.8828

Alumini on ChemicalAid

Alumini (Al)

Proprietat Fisica

Chemical Property

other

Isotopes of Aluminum

21Al

22Al

23Al

24Al

25Al

26Al

27Al

28Al

29Al

30Al

31Al

32Al

33Al

34Al

35Al

36Al

37Al

38Al

39Al

40Al

41Al

42Al

43Al

istòria

source

Nuclear Screening Constants

²¹Al

²²Al

²³Al

²⁴Al

²⁵Al

²⁶Al

²⁷Al

²⁸Al

²⁹Al

³⁰Al

³¹Al

³²Al

³³Al

³⁴Al

³⁵Al

³⁶Al

³⁷Al

³⁸Al

³⁹Al

⁴⁰Al

⁴¹Al

⁴²Al

⁴³Al