Magnésíọ̀mù

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sodiummagnésíọ̀mùalumíníọ̀mù
Be

Mg

Ca
Ìfarahàn
silvery white solid
Àwọn ìní àníkárí
Orúkọ, àmì-ìdámọ̀, nọ́mbà magnésíọ̀mù, Mg, 12
Ẹ̀ka apilẹ̀sẹ̀ alkaline earth metal
Àdìpọ̀, ìgbà, block 23, s
Ìwúwo átọ́mù 24.3050(6)g·mol−1
Ìtòjọ ẹ̀lẹ́ktrónì [Ne] 3s2
Àwọn ẹ̀lẹ́ktrónì lórí ọ̀nà kan 2, 8, 2 (Image)
Àwọn ìní aláfójúrí
Phase solid
Kíki (tó súnmọ́ r.t.) 1.738 g·cm−3
Liquid density at m.p. 1.584 g·cm−3
ojúàmì ìyọ́ 923 K, 650 °C, 1202 °F
ajúàmì ìhó 1363 K, 1091 °C, 1994 °F
Heat of fusion 8.48 kJ·mol−1
Heat of vaporization 128 kJ·mol−1
Specific heat capacity (25 °C) 24.869 J·mol−1·K−1
Vapor pressure
P/Pa 1 10 100 1 k 10 k 100 k
at T/K 701 773 861 971 1132 1361
Atomic properties
Oxidation states 2, 1 [1]
(strongly basic oxide)
Electronegativity 1.31 (Pauling scale)
Ionization energies
(more)
1st: 737.7 kJ·mol−1
2nd: 1450.7 kJ·mol−1
3rd: 7732.7 kJ·mol−1
Atomic radius 160 pm
Covalent radius 141±7 pm
Van der Waals radius 173 pm
Miscellanea
Crystal structure hexagonal
Magnetic ordering paramagnetic
Electrical resistivity (20 °C) 43.9 nΩ·m
Thermal conductivity (300 K) 156 W·m−1·K−1
Thermal expansion (25 °C) 24.8 µm·m−1·K−1
Speed of sound (thin rod) (r.t.) (annealed)
4940 m·s−1
Young's modulus 45 GPa
Shear modulus 17 GPa
Bulk modulus 45 GPa
Poisson ratio 0.290
Mohs hardness 2.5
Brinell hardness 260 MPa
CAS registry number 7439-95-4
Most stable isotopes
Main article: Isotopes of magnésíọ̀mù
iso NA half-life DM DE (MeV) DP
24Mg 78.99% 24Mg is stable with 12 neutrons
25Mg 10% 25Mg is stable with 13 neutrons
26Mg 11.01% 26Mg is stable with 14 neutrons

Magnésíọ̀mù (pípè /mæɡˈniːziəm/, mag-NEE-zee-əm) je apilese kemika pelu ami-idamo Mg, nomba atomu 12 ati nomba isodoksijini wiwopo +2. O je onide alkalini inu ile ati apilese pipo repete julo kejo ninu igbele Aye, ninbi to ti je bi 2% fun iposi,[2] ati ikesan ni gbogbo Agbalaaye ti a mo.[3][4]


[àtúnṣe] Itokasi

  1. Bernath, P. F., Black, J. H., & Brault, J. W. (1985). "The spectrum of magnesium hydride". Astrophysical Journal 298: 375. http://bernath.uwaterloo.ca/media/24.pdf. 
  2. Cite error: Invalid <ref> tag; no text was provided for refs named Abundance
  3. Housecroft, Catherine E; Sharpe, Alan G. (2007). "Group 2 metals". Inorganic Chemistry (3 ed.). Harlow, England: Pearson. ISBN 9780131755536. 
  4. Ash, Russell (2005). The Top 10 of Everything 2006: The Ultimate Book of Lists. Dk Pub. ISBN 0756613213. http://plymouthlibrary.org/faqelements.htm. .
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