Magnesium
12
Mg
Groep
2
Periode
3
Blok
s
Protonen
Elektronen
Neutronen
12
12
12
Algemene Eigenschappen
Atoomnummer
12
Atomair gewicht
24,305
Massa Getal
24
Categorie
Aardalkalimetalen
Kleur
Zilver
Radioactief
Nee
Van Magnesia, district in Thessalië
Kristalstructuur
Eenvoudige Hexagonaal
Historie
Scottish chemist Joseph Black recognized magnesium as an element in 1755.
Magnesium was first isolated by Sir Humphry Davy in 1808, in London.
He used electrolysis on a mixture of magnesia and mercuric oxide.
Antoine Bussy prepared it in coherent form in 1831.
Magnesium was first isolated by Sir Humphry Davy in 1808, in London.
He used electrolysis on a mixture of magnesia and mercuric oxide.
Antoine Bussy prepared it in coherent form in 1831.
Eletronen per schil
2, 8, 2
Electronconfiguratie
[Ne] 3s2
When it burns in air, magnesium produces a brilliant white light
Fysieke Eigenschappen
Fase
Vast
Dichtheid
1,738 g/cm3
Smeltpunt
923,15 K | 650 °C | 1202 °F
Kookpunt
1363,15 K | 1090 °C | 1994 °F
Fusiewarmte
8,7 kJ/mol
Verdampingswarmte
128 kJ/mol
Specifieke Warmtecapaciteit
1,023 J/g·K
Overvloedig aanwezig in de aardkorst
2,9%
Overvloedig aanwezig in het universum
0,06%
CAS-nummer
7439-95-4
PubChem CID nummer
5462224
Atoomeigenschappen
Atoomstraal
160 pm
Covalentiestraal
141 pm
Electronegativiteit
1,31 (Pauling schaal)
Ionisatiepotentiaal
7,6462 eV
Atoomvolume
13,97 cm3/mol
Thermische geleiding
1,56 W/cm·K
Oxidatietoestanden
1, 2
Toepassingen
Magnesium is widely used in the manufacturing of mobile phones, laptop computers, cameras, and other electronic components.
The brilliant light it produces when ignited is made use of in photography, flares, pyrotechnics and incendiary bombs.
Magnesium compounds such as the hydroxide (milk of magnesia), sulfate (Epsom salts), chloride and citrate are used for medicinal purposes.
The brilliant light it produces when ignited is made use of in photography, flares, pyrotechnics and incendiary bombs.
Magnesium compounds such as the hydroxide (milk of magnesia), sulfate (Epsom salts), chloride and citrate are used for medicinal purposes.
Because serious fires can occur, great care should be taken in handling magnesium metal
Isotopen
Stabiele isotopen
24Mg, 25Mg, 26MgInstabiele isotopen
19Mg, 20Mg, 21Mg, 22Mg, 23Mg, 27Mg, 28Mg, 29Mg, 30Mg, 31Mg, 32Mg, 33Mg, 34Mg, 35Mg, 36Mg, 37Mg, 38Mg, 39Mg, 40Mg