Aluminium Element (Periodic Table)

Aluminium

Aluminium (Al), also spelled as aluminum (in American and Canadian English) is a chemical element of the periodic table, located in the group 13 and the period 3, and is having the atomic number 13. It is a lightweight, silvery-white post transition metal, whose name comes from the Latin word “alumen”, which means bitter salt. It is a member of the boron group and is the third most abundant element on earth.

group
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
period
1
1
H
2
He
2
3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
3
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
4
19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
5
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
6
55
Cs
56
Ba
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
7
87
Fr
88
Ra
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Cn
113
Nh
114
Fl
115
Mc
116
Lv
117
Ts
118
Og
57
La
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr
– p block

FAQs on Aluminium Element

Aluminium
‣ What does aluminium look like?

Appearance: silvery grey metallic
‣ When was aluminium discovered and by whom?

Prediction: Antoine Lavoisier (1782)
Discovery: Hans Christian Orsted (1824)
Named by: Humphry Davy (1812)
‣ Where is aluminium located on the periodic table?

Aluminium Periodic Table

Location: Aluminium is found in the third row of the periodic table below the boron element.
‣ What is the atomic number of aluminium?

Atomic number (Z): 13
‣ What’s the chemical symbol for aluminium?

Symbol: Al
‣ What is the atomic weight of aluminium?

Standard atomic weight: 26.9815384
‣ What block is aluminum in on the periodic table?

Block: p-block
‣ In which group of the periodic table is aluminium found?

Group: 13 (boron group)
‣ What period is aluminium in on the periodic table?

Period: 3
‣ What is the atomic radius of aluminium?

Atomic radius: empirical: 143 pm
‣ What is the covalent radius for aluminium?

Covalent radius: 121±4 pm
Aluminium Van der Waals radius: 184 pm
‣ What is aluminium melting point?

Melting point: 933.47 K (660.32 °C, 1220.58 °F)
‣ What is aluminium’s boiling point?

Boiling point: 2743 K (2470 °C, 4478 °F)
‣ How many electron shells does aluminium have?

Electrons per shell: 2, 8, 3
‣ What is aluminium’s electron configuration?

Electron configuration: [Ne] 3s2 3p1
‣ What is the ionization energy of aluminium?

Ionization energies:
1st: 577.5 kJ/mol
2nd: 1816.7 kJ/mol
3rd: 2744.8 kJ/mol
‣ What is aluminium phase at room temperature?

Phase (at r.t): solid
‣ What is aluminium density?

Density (near r.t): 2.70 g/cm3
when liquid (at m.p): 2.375 g/cm3
Aluminium magnetic ordering: paramagnetic
Aluminium natural occurrence: primordial
‣ What is the oxidation state of aluminium?

Oxidation state: +3
Aluminium electronegativity: Pauling scale: 1.61
Aluminium poisson’s ratio: 0.35
Aluminium heat of fusion: 10.71 kJ/mol
Aluminium heat of vaporization: 284 kJ/mol
Aluminium molar heat capacity: 24.20 J/(mol K)
Aluminium molar magnetic susceptibility: +16.5 × 10-6 cm3/mol
Speed of sound in aluminium: (rolled) 5000 m/s (at r.t)
‣ Is aluminium fcc or bcc?

Crystal structure: face-centered cubic (fcc)
Thermal expansion of aluminium: 23.1 µm/(m.K) (at 25 °C)
Thermal conductivity of aluminium: 237 W/(m.K)
Aluminium electrical resistivity: 26.5 nΩ.m (at 20 °C)
‣ What is the hardness of aluminium?

Mohs hardness: 2.75
Vickers hardness: 160-350 MPa
Brinell hardness: 160-550 MPa
Young’s modulus of aluminium: 70 GPa
Shear modulus of aluminium: 26 GPa
Bulk modulus of aluminium: 76 GPa
Aluminium CAS number: 7429-90-5

‣ Aluminium vapor pressure

Vapor pressure
P (Pa)1101001 k10 k100 k
at T (K)148216321817205423642790

‣ How many isotopes does aluminium have?

Main isotopes of aluminium
IsotopeAbundanceHalf-life (t1/2)Decay modeProduct
26Altrace7.17 × 105 yβ+
ε
γ
26Mg
26Mg
27Al100 %stable

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