Magnez, ²Magneziumi

Magnez, ²Magneziumi (Mg)

chemical element, symbol Mg and atomic number 12
Atomic Number12
Atomic Weight24.305
Numri i masës24
Group2
Period3
Blocks
protoni12 p+
neutroni12 n0
elektroni12 e-
Animated Bohr model of Mg (Magnez, ²Magneziumi)

Tipar Fizik

Atomic Radius
150 pm
molar volume
covalent radius
139 pm
Metallic Radius
136 pm
ionic radius
57 pm
Crystal Radius
71 pm
Van der Waals radius
173 pm
density
1,74 g/cm³
Atomic Radii Of The Elements: Magnez, ²Magneziumi0153045607590105120135150165180pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

energjia
proton affinity
819,6 kJ/mol
electron affinity
ionization energy
7,646235 eV/particle
ionization energy of Mg (Magnez, ²Magneziumi)
enthalpy of vaporization
131,8 kJ/mol
enthalpy of fusion
9,2 kJ/mol
standard enthalpy of formation
147,1 kJ/mol
elektroni
electron shell2, 8, 2
Bohr model: Mg (Magnez, ²Magneziumi)
valence electron2
Lewis structure: Mg (Magnez, ²Magneziumi)
konfigurimi i elektronit[Ne] 3s2
1s2 2s2 2p6 3s2
Enhanced Bohr model of Mg (Magnez, ²Magneziumi)
Orbital Diagram of Mg (Magnez, ²Magneziumi)
oxidation number0, 1, 2
Elektronegativiteti
1.31
Electrophilicity Index
fundamental state of matter
gjendja agregate e materiesSolid
gaseous state of matter
Boiling Point
1 363,15 K
Melting Point
923,15 K
critical pressure
critical temperature
triple point
appearance
Ngjyra
Silver
appearanceshiny grey solid
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
0,0000248 1/K
molar heat capacity
24,869 J/(mol K)
Specific Heat Capacity
1,023 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
23 MS/m
electrical resistivity
0,00000004399999999999 m Ω
Superpërcjellshmëria
Magnetizimi
typeparamagnetic
magnetic susceptibility (Mass)
0,0000000069 m³/Kg
magnetic susceptibility (Molar)
0,000000000168 m³/mol
magnetic susceptibility (Volume)
0,000012
magnetic ordering
Curie temperature
Néel temperature
strukturë
Crystal StructureSimple Hexagonal (HEX)
lattice constant
3,21 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
2,5 MPa
bulk modulus
45 GPa
shear modulus
17 GPa
Young's modulus
45 GPa
Poisson's ratio
0,29
Shpejtësia e zërit
4 602 m/s
klasifikim
CategoryAlkaline earth metals, 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
Neutron cross section
0,063
Neutron Mass Absorption
0,0001
numër kuantik1S0
space group194 (P63/mmc)

Isotopes of Magnesium

Stable Isotopes3
Unstable Isotopes20
Natural Isotopes3
Isotopic Composition2478.96%2478.96%2611.02%2611.02%2510.01%2510.01%

19Mg

Numri i masës19
numri i neutroneve7
relative atomic mass
19,03417992 ± 0,000064413 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
5 ± 3 ps
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2007
parity-

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

20Mg

Numri i masës20
numri i neutroneve8
relative atomic mass
20,018763075 ± 0,000002 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
90,4 ± 0,5 ms
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1974
parity+

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

21Mg

Numri i masës21
numri i neutroneve9
relative atomic mass
21,011705764 ± 0,00000081 Da
g-factor
-0,3932 ± 0,0028
natural abundance
Radioaktivitet☢️ radioactive element
half-life
120 ± 0,4 ms
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1963
parity+

decay modeintensitet
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

Numri i masës22
numri i neutroneve10
relative atomic mass
21,999570597 ± 0,00000017 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,8745 ± 0,0007 s
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1961
parity+

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

23Mg

Numri i masës23
numri i neutroneve11
relative atomic mass
22,994123768 ± 0,000000034 Da
g-factor
-0,35753333333333 ± 0,0002
natural abundance
Radioaktivitet☢️ radioactive element
half-life
11,3039 ± 0,0032 s
Spini3/2
nuclear quadrupole moment
0,114 ± 0,003
koha e zbulimit apo shpikjes1939
parity+

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

24Mg

Numri i masës24
numri i neutroneve12
relative atomic mass
23,985041689 ± 0,000000013 Da
g-factor
0
natural abundance
78,965 ± 0,049
Radioaktivitetstable isotope
half-lifeNot Radioactive ☢️
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1920
parity+

25Mg

Numri i masës25
numri i neutroneve13
relative atomic mass
24,985836966 ± 0,00000005 Da
g-factor
-0,342132 ± 0,000012
natural abundance
10,011 ± 0,013
Radioaktivitetstable isotope
half-lifeNot Radioactive ☢️
Spini5/2
nuclear quadrupole moment
0,199 ± 0,002
koha e zbulimit apo shpikjes1920
parity+

26Mg

Numri i masës26
numri i neutroneve14
relative atomic mass
25,982592972 ± 0,000000031 Da
g-factor
0
natural abundance
11,025 ± 0,038
Radioaktivitetstable isotope
half-lifeNot Radioactive ☢️
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1920
parity+

27Mg

Numri i masës27
numri i neutroneve15
relative atomic mass
26,984340647 ± 0,00000005 Da
g-factor
-0,8212 ± 0,003
natural abundance
Radioaktivitet☢️ radioactive element
half-life
9,435 ± 0,027 m
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1934
parity+

decay modeintensitet
β (β decay)100%

28Mg

Numri i masës28
numri i neutroneve16
relative atomic mass
27,983875426 ± 0,00000028 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
20,915 ± 0,009 h
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1953
parity+

decay modeintensitet
β (β decay)100%

29Mg

Numri i masës29
numri i neutroneve17
relative atomic mass
28,988607163 ± 0,000000369 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,3 ± 0,12 s
Spini3/2
nuclear quadrupole moment
-0,16 ± 0,04
koha e zbulimit apo shpikjes1971
parity+

decay modeintensitet
β (β decay)100%

30Mg

Numri i masës30
numri i neutroneve18
relative atomic mass
29,990465454 ± 0,00000139 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
317 ± 4 ms
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1971
parity+

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

31Mg

Numri i masës31
numri i neutroneve19
relative atomic mass
30,996648232 ± 0,0000033 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
270 ± 2 ms
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1977
parity+

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

32Mg

Numri i masës32
numri i neutroneve20
relative atomic mass
31,999110138 ± 0,0000035 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
80,4 ± 0,4 ms
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1977
parity+

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

33Mg

Numri i masës33
numri i neutroneve21
relative atomic mass
33,005327862 ± 0,000002859 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
92 ± 1,2 ms
Spini3/2
nuclear quadrupole moment
0,13 ± 0,09
koha e zbulimit apo shpikjes1979
parity-

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

34Mg

Numri i masës34
numri i neutroneve22
relative atomic mass
34,008935455 ± 0,0000074 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
44,9 ± 0,4 ms
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1979
parity+

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

35Mg

Numri i masës35
numri i neutroneve23
relative atomic mass
35,01679 ± 0,0002895 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
11,3 ± 0,6 ms
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1989
parity-

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

36Mg

Numri i masës36
numri i neutroneve24
relative atomic mass
36,021879 ± 0,000741 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,9 ± 1,3 ms
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1989
parity+

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

37Mg

Numri i masës37
numri i neutroneve25
relative atomic mass
37,030286265 ± 0,00075035 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
8 ± 4 ms
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1996
parity-

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

38Mg

Numri i masës38
numri i neutroneve26
relative atomic mass
38,03658 ± 0,00054 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1997
parity+

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

39Mg

Numri i masës39
numri i neutroneve27
relative atomic mass
39,045921 ± 0,000551 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity-

decay modeintensitet
n (neutron emission)
β (β decay)

40Mg

Numri i masës40
numri i neutroneve28
relative atomic mass
40,053194 ± 0,000537 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2007
parity+

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

41Mg

Numri i masës41
numri i neutroneve29
relative atomic mass
41,062373 ± 0,000537 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity-

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

historia

zbuluesSir Humphrey Davy
vendndodhja e zbulimitEngland
koha e zbulimit apo shpikjes1808
EtimologjiaFrom Magnesia ancient city in district of Thessaly, Greece.
pronunciationmag-NEE-zih-em (anglisht)

burim

Abundance
Abundance in Earth's crust
23 300 mg/kg
natural abundance (Oqeani)
1 290 mg/L
natural abundance (Trupi i njeriut)
0,027 %
natural abundance (meteoroid)
12 %
natural abundance (Diell)
0,07 %
Abundance in Universe
0,06 %

Nuclear Screening Constants

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