Infobox magnesium

	child table, as reused in {IB-Mg} Template:V
Main isotopes of Template:Infobox element/symbol-to-name
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Magnesium, ₁₂Mg
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Magnesium
Pronunciation	Template:Infobox element/pronunciation
Allotropes	Template:Infobox element/symbol-to-allotropes
Appearance	shiny grey solid
Mass number	Template:Infobox element/symbol-to-most-stable-isotope
Magnesium in the periodic table
	Template:Infobox element/periodic table
Atomic number (Z)	12
Group	Template:Infobox element/symbol-to-group
Period	Template:Infobox element/symbol-to-period
Block	Template:Infobox element/block format
Electron configuration	Template:Infobox element/symbol-to-electron-configuration
Electrons per shell	2, 8, 2
Physical properties
Phase at STP	Template:Infobox element/symbol-to-phase
Melting point	923 K (650 °C, 1202 °F)
Boiling point	1363 K (1091 °C, 1994 °F)
Density (at 20° C)	1.737 g/cm3
when liquid (at m.p.)	1.584 g/cm3
Heat of fusion	8.48 kJ/mol
Heat of vaporization	128 kJ/mol
Molar heat capacity	24.869 J/(mol·K)
	Vapor pressureTemplate:Infobox element/vapor pressure table
Atomic properties
Oxidation states	Template:Element-symbol-to-oxidation-state-data
Electronegativity	Pauling scale: 1.31
Ionization energies	1st: 737.7 kJ/mol ; 2nd: 1450.7 kJ/mol ; 3rd: 7732.7 kJ/mol ; (more) ;
Atomic radius	empirical: 160 pm
Covalent radius	141±7 pm
Van der Waals radius	173 pm
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Other properties
Natural occurrence	Template:Infobox element/symbol-to-occurrence
Crystal structure	Template:Infobox element/crystal structure (hP2)
Lattice constants	Template:Infobox element/crystal structurea = 320.91 pm; c = 521.03 pm (at 20 °C)
Thermal expansion	25.91×10−6/K (at 20 °C)
Thermal conductivity	156 W/(m⋅K)
Electrical resistivity	43.9 nΩ⋅m (at 20 °C)
Magnetic ordering	paramagnetic
Molar magnetic susceptibility	+13.1×10−6 cm3/mol (298 K)
Young's modulus	45 GPa
Shear modulus	17 GPa
Bulk modulus	35.4 GPa
Speed of sound thin rod	4940 m/s (at r.t.) (annealed)
Poisson ratio	0.290
Mohs hardness	1–2.5
Brinell hardness	44–260 MPa
CAS Number	7439-95-4
History
Naming	after Magnesia, Greece
Discovery	Joseph Black (1755)
First isolation	Humphry Davy (1808)
Symbol	Template:Infobox element/symbol-to-symbol-etymology
Isotopes of magnesium Template:V
	Template:infobox magnesium isotopes does not exist
	Category: Magnesium; view; talk; edit; \| references

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Notes

↑ The thermal expansion is anisotropic: the parameters (at 20 °C) for each crystal axis are α_a = 25.31×10⁻⁶/K, α_c = 27.03×10⁻⁶/K, and α_average = α_V/3 = 25.91×10⁻⁶/K.^[1]

References

↑ ^1.0 ^1.1 ^1.2 ^1.3 Arblaster, John W. (2018). Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International. ISBN 978-1-62708-155-9.
↑ Rumble, p. 4.61
↑ Rumble, p. 12.137
↑ Rumble, p. 12.28
↑ Rumble, p. 4.70
↑ Gschneider, K. A. (1964). Physical Properties and Interrelationships of Metallic and Semimetallic Elements. Solid State Physics. Vol. 16. p. 308. doi:10.1016/S0081-1947(08)60518-4. OCLC 646775097.
↑ ^7.0 ^7.1 ^7.2 Rumble, p. 4.19

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[3] The thermal expansion is anisotropic: the parameters (at 20 °C) for each crystal axis are α_a = 25.31×10⁻⁶/K, α_c = 27.03×10⁻⁶/K, and α_average = α_V/3 = 25.91×10⁻⁶/K.^[1]

[Arblaster_2018-1] 1.0 ^1.1 ^1.2 ^1.3 Arblaster, John W. (2018). Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International. ISBN 978-1-62708-155-9.

[2] Rumble, p. 4.61

[4] Rumble, p. 12.137

[5] Rumble, p. 12.28

[6] Rumble, p. 4.70

[7] Gschneider, K. A. (1964). Physical Properties and Interrelationships of Metallic and Semimetallic Elements. Solid State Physics. Vol. 16. p. 308. doi:10.1016/S0081-1947(08)60518-4. OCLC 646775097.

[r1-8] 7.0 ^7.1 ^7.2 Rumble, p. 4.19

[1]

[2]

[lower-alpha 1]

[3]

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[6]

[7]

Template:Infobox magnesium

Notes

References