Magnezij

Magnezij (Mg)

chemical element, symbol Mg and atomic number 12
Atomski broj12
Relativna atomska masa24.305
Maseni broj24
Skupina2
Perioda3
Bloks
proton12 p+
neutron12 n0
elektron12 e-
Animated Bohrov model atoma of Mg (Magnezij)

Physical Property

Atomski Radijus
150 pm
Molni volumen
Kovalentni Radijus
139 pm
Metallic Radius
136 pm
Ionski radijus
57 pm
Crystal Radius
71 pm
Van der Waals radius
173 pm
gustoća
1,74 g/cm³
Atomic Radii Of The Elements: Magnezij0102030405060708090100110120130140150160170180pmAtomski RadijusKovalentni RadijusMetallic RadiusVan der Waals radius

Kemijsko Svojstvo

energija
proton affinity
819,6 kJ/mol
Elektronski afinitet
ionization energy
7,646235 eV/particle
ionization energy of Mg (Magnezij)
Toplina isparivanja
131,8 kJ/mol
toplina taljenja
9,2 kJ/mol
standard enthalpy of formation
147,1 kJ/mol
elektron
Elektronska ljuska2, 8, 2
Bohrov model atoma: Mg (Magnezij)
valence electron2
Lewis structure: Mg (Magnezij)
electron configuration[Ne] 3s2
1s2 2s2 2p6 3s2
Enhanced Bohrov model atoma of Mg (Magnezij)
Orbital Diagram of Mg (Magnezij)
Oksidacijski broj0, 1, 2
Elektronegativnost
1.31
Electrophilicity Index
fundamental state of matter
agregatno stanjeČvrsto
gaseous state of matter
Vrelište
1.363,15 K
Talište
923,15 K
critical pressure
critical temperature
Trojna točka
appearance
boja
Srebrna
appearanceshiny grey solid
Indeks prelamanja
thermodynamic material property
Toplinska vodljivost
Toplinsko istezanje
0,0000248 1/K
molar heat capacity
24,869 J/(mol K)
Specifični toplinski kapacitet
1,023 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
23 MS/m
Električna otpornost i provodnost
0,00000004399999999999 m Ω
Supravodljivost
Magnetizam
typeparamagnetic
Magnetna susceptibilnost (Mass)
0,0000000069 m³/Kg
Magnetna susceptibilnost (Molar)
0,000000000168 m³/mol
Magnetna susceptibilnost (Volume)
0,000012
magnetic ordering
Curieva temperatura
Néel temperature
struktura
Kristalna strukturaJednostavna heksagonska (HEX)
lattice constant
3,21 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
Tvrdoća
2,5 MPa
bulk modulus
45 GPa
shear modulus
17 GPa
Youngov modul elastičnosti
45 GPa
Poissonov omjer
0,29
brzina zvuka
4.602 m/s
classification
KategorijaZemnoalkalijski metali, Alkaline earth metals
CAS GroupIIA
IUPAC GroupIIA
Glawe Number73
Mendeleev Number76
Pettifor Number73
Geochemical Classmajor
Goldschmidt classificationlitophile

other

Gas Basicity
797,3 kJ/mol
polarizability
71,2 ± 0,4 a₀
C6 Dispersion Coefficient
626 a₀
allotrope
Nuklearni udarni presjek
0,063
Neutron Mass Absorption
0,0001
Kvantni brojevi1S0
space group194 (P63/mmc)

Isotopes of Magnesium

Stabilni izotopi3
Nestabilni izotopi20
Natural Isotopes3
Isotopic Composition2478.96%2478.96%2611.02%2611.02%2510.01%2510.01%

19Mg

Maseni broj19
neutron number7
Relativna atomska masa
19,03417992 ± 0,000064413 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5 ± 3 ps
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2007
Parnost-

decay modeintensity
2p (2-proton emission)100%

20Mg

Maseni broj20
neutron number8
Relativna atomska masa
20,018763075 ± 0,000002 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
90,4 ± 0,5 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1974
Parnost+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)30.3%

21Mg

Maseni broj21
neutron number9
Relativna atomska masa
21,011705764 ± 0,00000081 Da
g-factor
−0,3932 ± 0,0028
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
120 ± 0,4 ms
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1963
Parnost+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)20.1%
β+α (β+-delayed α emission)0.116%
B+pA0.016%

22Mg

Maseni broj22
neutron number10
Relativna atomska masa
21,999570597 ± 0,00000017 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,8745 ± 0,0007 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1961
Parnost+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

23Mg

Maseni broj23
neutron number11
Relativna atomska masa
22,994123768 ± 0,000000034 Da
g-factor
−0,35753333333333 ± 0,0002
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
11,3039 ± 0,0032 s
spin3/2
nuclear quadrupole moment
0,114 ± 0,003
vrijeme otkrića ili izuma1939
Parnost+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

24Mg

Maseni broj24
neutron number12
Relativna atomska masa
23,985041689 ± 0,000000013 Da
g-factor
0
natural abundance
78,965 ± 0,049
radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1920
Parnost+

25Mg

Maseni broj25
neutron number13
Relativna atomska masa
24,985836966 ± 0,00000005 Da
g-factor
−0,342132 ± 0,000012
natural abundance
10,011 ± 0,013
radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin5/2
nuclear quadrupole moment
0,199 ± 0,002
vrijeme otkrića ili izuma1920
Parnost+

26Mg

Maseni broj26
neutron number14
Relativna atomska masa
25,982592972 ± 0,000000031 Da
g-factor
0
natural abundance
11,025 ± 0,038
radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1920
Parnost+

27Mg

Maseni broj27
neutron number15
Relativna atomska masa
26,984340647 ± 0,00000005 Da
g-factor
−0,8212 ± 0,003
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
9,435 ± 0,027 m
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1934
Parnost+

decay modeintensity
β (β decay)100%

28Mg

Maseni broj28
neutron number16
Relativna atomska masa
27,983875426 ± 0,00000028 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
20,915 ± 0,009 h
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1953
Parnost+

decay modeintensity
β (β decay)100%

29Mg

Maseni broj29
neutron number17
Relativna atomska masa
28,988607163 ± 0,000000369 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,3 ± 0,12 s
spin3/2
nuclear quadrupole moment
−0,16 ± 0,04
vrijeme otkrića ili izuma1971
Parnost+

decay modeintensity
β (β decay)100%

30Mg

Maseni broj30
neutron number18
Relativna atomska masa
29,990465454 ± 0,00000139 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
317 ± 4 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1971
Parnost+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.06%

31Mg

Maseni broj31
neutron number19
Relativna atomska masa
30,996648232 ± 0,0000033 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
270 ± 2 ms
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1977
Parnost+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)6.2%

32Mg

Maseni broj32
neutron number20
Relativna atomska masa
31,999110138 ± 0,0000035 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
80,4 ± 0,4 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1977
Parnost+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)5.5%

33Mg

Maseni broj33
neutron number21
Relativna atomska masa
33,005327862 ± 0,000002859 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
92 ± 1,2 ms
spin3/2
nuclear quadrupole moment
0,13 ± 0,09
vrijeme otkrića ili izuma1979
Parnost-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)14%
2n (2-neutron emission)

34Mg

Maseni broj34
neutron number22
Relativna atomska masa
34,008935455 ± 0,0000074 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
44,9 ± 0,4 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1979
Parnost+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)21%
2n (2-neutron emission)0.1%

35Mg

Maseni broj35
neutron number23
Relativna atomska masa
35,01679 ± 0,0002895 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
11,3 ± 0,6 ms
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1989
Parnost-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)52%
2n (2-neutron emission)

36Mg

Maseni broj36
neutron number24
Relativna atomska masa
36,021879 ± 0,000741 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,9 ± 1,3 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1989
Parnost+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)48%
2n (2-neutron emission)

37Mg

Maseni broj37
neutron number25
Relativna atomska masa
37,030286265 ± 0,00075035 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8 ± 4 ms
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1996
Parnost-

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)

38Mg

Maseni broj38
neutron number26
Relativna atomska masa
38,03658 ± 0,00054 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1997
Parnost+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

39Mg

Maseni broj39
neutron number27
Relativna atomska masa
39,045921 ± 0,000551 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma
Parnost-

decay modeintensity
n (neutron emission)
β (β decay)

40Mg

Maseni broj40
neutron number28
Relativna atomska masa
40,053194 ± 0,000537 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2007
Parnost+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)

41Mg

Maseni broj41
neutron number29
Relativna atomska masa
41,062373 ± 0,000537 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma
Parnost-

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
Magnesium crystals

povijest

otkrio/izumioSir Humphrey Davy
location of discoveryEngland
vrijeme otkrića ili izuma1808
EtimologijaFrom Magnesia ancient city in district of Thessaly, Greece.
pronunciationmag-NEE-zih-em (engleski)

source

Obilnost
Zastupljenost u Zemljinoj kori
23.300 mg/kg
natural abundance (ocean)
1.290 mg/L
natural abundance (tijelo)
0,027 %
natural abundance (meteoroid)
12 %
natural abundance (Sunce)
0,07 %
Zastupljenost u svemiru
0,06 %

Nuclear Screening Constants

1s0.3911
2p4.1742
2s4.608
3s8.6925