Magnesium

Latin nameMagnesium
English nameMagnesium
chemical symbolMg
atomic number12
relative atomic mass24,305
period3
groupII.A
classificationmetals
discovery year1808
discovererH. Davy
melting point [°C]648,8
boiling point [°C]1090
density [g cm-3]1,738
density at melting point [g cm-3]1,584
electronegativity [Pauling]1,31
stand. el. potential [V]−2,372
oxidation statesII
electron configuration[Ne]3s2
atomic radius [pm]145
covalent radius [pm]130
specific heat [J g-1K-1]1,02
heat of fusion [kJ mol-1]8,954
thermal conductivity [W m-1 K-1]156
el. conductivity [S m-1]2,24.107
1. ionizing potential [eV]7,6462
2. ionizing potential [eV]15,035
3. ionizing potential [eV]80,143
Mohs hardness2,5
Brinell hardness [MPa]260
shear modulus [GPa]17
Young's modulus [GPa]45
state at normal conditionssolid

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