Magnezij[um] (Mg)

hemijski element sa simbolom Mg i atomskim brojem 12

Atomic Number	12
Atomic Weight	24.305
Maseni broj	24

Group	2
Period	3
Block	s

Proton	12 p⁺
Neutron	12 n⁰
Elektron	12 e^-

Animated Bohrov model atoma of Mg (Magnezij[um])

Physical Property

Atomski Radijus	150 pm 240 pm
Molarni volumen	14 cm³/mol
covalent radius	139 pm 132 pm 127 pm 142 pm 141 pm
Metallic Radius	136 pm 160 pm
Ionski radijus	57 pm 66 pm 72 pm 89 pm
Crystal Radius	71 pm 80 pm 86 pm 103 pm
Van der Waalsov radijus	220 pm 173 pm 173 pm 243 pm 302,1 pm
gustoća	1,74 g/cm³ 1.584 kg/m³

Chemical Property

{ERROR}

energija

proton affinity	819,6 kJ/mol
electron affinity
ionization energy	7,646235 eV/particle 15,035267 eV/particle 80,1436 eV/particle 109,2654 eV/particle 141,335 eV/particle 186,76 eV/particle 225,015 eV/particle 265,924 eV/particle 327,985 eV/particle 367,5 eV/particle 1.761,80481 eV/particle 1.962,664 eV/particle

Toplota isparavanja	131,8 kJ/mol
toplota topljenja	9,2 kJ/mol
standard enthalpy of formation	147,1 kJ/mol
Elektron

electron shell	2, 8, 2

Valentni elektron	2 ⓘ

electron configuration	[Ne] 3s²ⓘ 1s² 2s² 2p⁶ 3s²

oksidacijsko stanje	0, 1, 2
Elektronegativnost	7,646 eV/particle 0.121644 1.31
Electrophilicity Index
fundamental state of matter

agregatno stanje
gaseous state of matter
Boiling Point	1.363,15 K
Melting Point	923,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja	Black #228b22 #8aff00 #8aff00
appearance	shiny grey solid
Indeks prelamanja
thermodynamic material property
Thermal Conductivity	156 W/(m K)
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
type	Conductor
Specifična električna provodljivost	23 MS/m
electrical resistivity	0,00000004399999999999 Ω*m
Superprovodljivost
Magnetizam
type	paramagnetic
magnetic susceptibility (Mass)	0,0000000069 m³/Kg
magnetic susceptibility (Molar)	0,000000000168 m³/mol
magnetic susceptibility (Volume)	0,000012
magnetic ordering
Kirijeva tačka
Néel temperature
struktura
Crystal Structure	{ERROR}
lattice constant	3,21 Å
Lattice Angles	π/2, π/2, 2 π/3
mechanical property
Tvrdoća	260 MPa 2,5 MPa
bulk modulus	45 GPa
shear modulus	17 GPa
Young's modulus	45 GPa
Poisson's ratio	0,29
Brzina zvuka	4.602 m/s
klasifikacija
Category	Actinides, Alkaline earth metals
CAS Group	IIA
IUPAC Group	IIA
Glawe Number	73
Mendeleev Number	76
Pettifor Number	73
Geochemical Class	major
Goldschmidt classification	litophile

other

Gas Basicity	797,3 kJ/mol
polarizability	71,2 ± 0,4 a₀
C6 Dispersion Coefficient	626 a₀ 629 a₀
allotrope
Neutron cross section	0,063
Neutron Mass Absorption	0,0001
Kvantni brojevi	1S0
space group	194 (P63/mmc)

Isotopes of Magnesium

Stable Isotopes	3
Unstable Isotopes	20
Natural Isotopes	3

¹⁹Mg

Maseni broj	19
broj neutrona	7
Relative Atomic Mass	19,03417992 ± 0,000064413 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	5 ± 3 ps
spin	1/2
nuclear quadrupole moment	0
datum otkrića	2007
parity	-

decay mode	intensity
2p (2-proton emission)	100%

²⁰Mg

Maseni broj	20
broj neutrona	8
Relative Atomic Mass	20,018763075 ± 0,000002 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	90,4 ± 0,5 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1974
parity	+

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

²¹Mg

Maseni broj	21
broj neutrona	9
Relative Atomic Mass	21,011705764 ± 0,00000081 Da
g-factor	-0,3932 ± 0,0028
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	120 ± 0,4 ms
spin	5/2
nuclear quadrupole moment
datum otkrića	1963
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	20.1%
β⁺α (β⁺-delayed α emission)	0.116%
B+pA	0.016%

²²Mg

Maseni broj	22
broj neutrona	10
Relative Atomic Mass	21,999570597 ± 0,00000017 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	3,8745 ± 0,0007 s
spin	0
nuclear quadrupole moment	0
datum otkrića	1961
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

²³Mg

Maseni broj	23
broj neutrona	11
Relative Atomic Mass	22,994123768 ± 0,000000034 Da
g-factor	-0,35753333333333 ± 0,0002
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	11,3039 ± 0,0032 s
spin	3/2
nuclear quadrupole moment	0,114 ± 0,003
datum otkrića	1939
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

²⁴Mg

Maseni broj	24
broj neutrona	12
Relative Atomic Mass	23,985041689 ± 0,000000013 Da
g-factor	0
natural abundance	78,965 ± 0,049
Radioaktivnost	stable isotope
Vrijeme poluraspada	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
datum otkrića	1920
parity	+

²⁵Mg

Maseni broj	25
broj neutrona	13
Relative Atomic Mass	24,985836966 ± 0,00000005 Da
g-factor	-0,342132 ± 0,000012
natural abundance	10,011 ± 0,013
Radioaktivnost	stable isotope
Vrijeme poluraspada	Not Radioactive ☢️
spin	5/2
nuclear quadrupole moment	0,199 ± 0,002
datum otkrića	1920
parity	+

²⁶Mg

Maseni broj	26
broj neutrona	14
Relative Atomic Mass	25,982592972 ± 0,000000031 Da
g-factor	0
natural abundance	11,025 ± 0,038
Radioaktivnost	stable isotope
Vrijeme poluraspada	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
datum otkrića	1920
parity	+

²⁷Mg

Maseni broj	27
broj neutrona	15
Relative Atomic Mass	26,984340647 ± 0,00000005 Da
g-factor	-0,8212 ± 0,003
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	9,435 ± 0,027 m
spin	1/2
nuclear quadrupole moment	0
datum otkrića	1934
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁸Mg

Maseni broj	28
broj neutrona	16
Relative Atomic Mass	27,983875426 ± 0,00000028 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	20,915 ± 0,009 h
spin	0
nuclear quadrupole moment	0
datum otkrića	1953
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁹Mg

Maseni broj	29
broj neutrona	17
Relative Atomic Mass	28,988607163 ± 0,000000369 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	1,3 ± 0,12 s
spin	3/2
nuclear quadrupole moment	-0,16 ± 0,04
datum otkrića	1971
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

³⁰Mg

Maseni broj	30
broj neutrona	18
Relative Atomic Mass	29,990465454 ± 0,00000139 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	317 ± 4 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1971
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.06%

³¹Mg

Maseni broj	31
broj neutrona	19
Relative Atomic Mass	30,996648232 ± 0,0000033 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	270 ± 2 ms
spin	1/2
nuclear quadrupole moment	0
datum otkrića	1977
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	6.2%

³²Mg

Maseni broj	32
broj neutrona	20
Relative Atomic Mass	31,999110138 ± 0,0000035 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	80,4 ± 0,4 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1977
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	5.5%

³³Mg

Maseni broj	33
broj neutrona	21
Relative Atomic Mass	33,005327862 ± 0,000002859 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	92 ± 1,2 ms
spin	3/2
nuclear quadrupole moment	0,13 ± 0,09
datum otkrića	1979
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	14%
2n (2-neutron emission)

³⁴Mg

Maseni broj	34
broj neutrona	22
Relative Atomic Mass	34,008935455 ± 0,0000074 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	44,9 ± 0,4 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1979
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	21%
2n (2-neutron emission)	0.1%

³⁵Mg

Maseni broj	35
broj neutrona	23
Relative Atomic Mass	35,01679 ± 0,0002895 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	11,3 ± 0,6 ms
spin	3/2
nuclear quadrupole moment
datum otkrića	1989
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	52%
2n (2-neutron emission)

³⁶Mg

Maseni broj	36
broj neutrona	24
Relative Atomic Mass	36,021879 ± 0,000741 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	3,9 ± 1,3 ms
spin	0
nuclear quadrupole moment	0
datum otkrića	1989
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	48%
2n (2-neutron emission)

³⁷Mg

Maseni broj	37
broj neutrona	25
Relative Atomic Mass	37,030286265 ± 0,00075035 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	8 ± 4 ms
spin	3/2
nuclear quadrupole moment
datum otkrića	1996
parity	-

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

³⁸Mg

Maseni broj	38
broj neutrona	26
Relative Atomic Mass	38,03658 ± 0,00054 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	0
nuclear quadrupole moment	0
datum otkrića	1997
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

³⁹Mg

Maseni broj	39
broj neutrona	27
Relative Atomic Mass	39,045921 ± 0,000551 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	7/2
nuclear quadrupole moment
datum otkrića
parity	-

decay mode	intensity
n (neutron emission)
β⁻ (β⁻ decay)

⁴⁰Mg

Maseni broj	40
broj neutrona	28
Relative Atomic Mass	40,053194 ± 0,000537 Da
g-factor	0
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	0
nuclear quadrupole moment	0
datum otkrića	2007
parity	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁴¹Mg

Maseni broj	41
broj neutrona	29
Relative Atomic Mass	41,062373 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	3/2
nuclear quadrupole moment
datum otkrića
parity	-

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)

historija

otkrivač ili izumitelj	Sir Humphrey Davy
mjesto otkrića	England
datum otkrića	1808
Etimologija	From Magnesia ancient city in district of Thessaly, Greece.
pronunciation	mag-NEE-zih-em (engleski)

izvor

Abundance
Abundance in Earth's crust	23.300 mg/kg
natural abundance (okean)	1.290 mg/L
natural abundance (ljudsko tijelo)	0,027 %
natural abundance (Meteoroidi)	12 %
natural abundance (Sunce)	0,07 %
Abundance in Universe	0,06 %

Nuclear Screening Constants

1	s	0.3911
2	p	4.1742
2	s	4.608
3	s	8.6925

Magnezij[um] on ChemicalAid

Magnezij[um] (Mg)

Physical Property

Chemical Property

other

Isotopes of Magnesium

19Mg

20Mg

21Mg

22Mg

23Mg

24Mg

25Mg

26Mg

27Mg

28Mg

29Mg

30Mg

31Mg

32Mg

33Mg

34Mg

35Mg

36Mg

37Mg

38Mg

39Mg

40Mg

41Mg

historija

izvor

Nuclear Screening Constants

¹⁹Mg

²⁰Mg

²¹Mg

²²Mg

²³Mg

²⁴Mg

²⁵Mg

²⁶Mg

²⁷Mg

²⁸Mg

²⁹Mg

³⁰Mg

³¹Mg

³²Mg

³³Mg

³⁴Mg

³⁵Mg

³⁶Mg

³⁷Mg

³⁸Mg

³⁹Mg

⁴⁰Mg

⁴¹Mg