Alumiini

Kemiallinen merkki: Al
Järjestysluku: 13
Kategoria: muut metallit
Ryhmä: 13
Jakso: 3
Lohko: p
Moolimassa: 26,9815386 g/mol
Elektronia kuorilla: 2, 8, 3
CAS-numero: 7429-90-5
Olomuoto: kiinteä
Tiheys: 2,70 kg/l (lähellä huoneenlämpöä)
Sulamispiste: 933,47 K (660,32 °C, 1220,58 °F)
Kiehumispiste: 2792 K (2519 °C, 4566 °F)
Kiderakenne: face centered cubic
Hapetusluvut: 3, 2, 1
Elektronegatiivisuus: 1,61 (Pauling-asteikko)
Nimen alkuperä: alumium
Nimen tarkoitus: the name that the chemist-inventor Humphry Davy gave to the metal base of the mineral alumina
Faktoja:
- is the most abundant metal in the Earth's crust, and the third most abundant element therein, after oxygen and silicon
- makes up about 8% by weight of the Earth's solid surface
- is too reactive chemically to occur in nature as a free metal - instead, it is found combined in over 270 different minerals
- is remarkable for its ability to resist corrosion (due to the phenomenon of passivation) and its low density
- is used in aerospace industry, transportation and building, and as a catalyst or additive in chemical mixtures, including being used in ammonium nitrate explosives to enhance blast power
- has nine isotopes, whose mass numbers range from
- is 100% recyclable without any loss of its natural qualities