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Aluminium (Al)
Atomic number: 13 · Category: post-transition metal · Group 13 · Period 3 · Phase: Solid
Aluminium (or aluminum; see different endings) is a chemical element in the boron group with symbol Al and atomic number 13. It is a silvery-white, soft, nonmagnetic, ductile metal. Aluminium is the third most abundant element (after oxygen and silicon), and the most abundant metal, in the Earth's crust.
Atomic mass: 26.98153857
Density: 2.7
Melting point: 933.47 K
Boiling point: 2743 K
Appearance: silvery gray metallic
Source: Wikipedia
Block: p
Molar heat: 24.2
CPK color:#bfa6a6
Electronic structure
Electron configuration: 1s2 2s2 2p6 3s2 3p1
Configuration (semantic): [Ne] 3s2 3p1
Shells: 2, 8, 3
Electronegativity (Pauling): 1.61
Electron affinity: 41.762
Ionization energies: 577.5, 1816.7, 2744.8, 11577, 14842, 18379, 23326, 27465, 31853, 38473, 42647, 201266, 222316
Periodic position
Group: 13
Period: 3
xpos: 13
ypos: 3
Spectral/Bohr images
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3D Model