Magnezij (Mg)

chemical element, symbol Mg and atomic number 12

Atomski broj	12
Relativna atomska masa	24.305
Maseni broj	24

Skupina	2
Perioda	3
Blok	s

proton	12 p⁺
neutron	12 n⁰
elektron	12 e^-

Animated Bohrov model atoma of Mg (Magnezij)

Physical Property

Atomski Radijus	150 pm 240 pm
Molni volumen	14 cm³/mol
Kovalentni Radijus	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 Waals radius	220 pm 173 pm 173 pm 243 pm 302,1 pm
gustoća	1,74 g/cm³ 1.584 kg/m³

Kemijsko Svojstvo

{ERROR}

energija

proton affinity	819,6 kJ/mol
Elektronski afinitet
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

Toplina isparivanja	131,8 kJ/mol
toplina taljenja	9,2 kJ/mol
standard enthalpy of formation	147,1 kJ/mol
elektron

Elektronska ljuska	2, 8, 2

valence electron	2 ⓘ

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

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

agregatno stanje
gaseous state of matter
Vrelište	1.363,15 K
Talište	923,15 K
critical pressure
critical temperature
Trojna točka
appearance
boja	Crna #228b22 #8aff00 #8aff00
appearance	shiny grey solid
Indeks prelamanja
thermodynamic material property
Toplinska vodljivost	156 W/(m K)
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
type	Conductor
electrical conductivity	23 MS/m
Električna otpornost i provodnost	0,00000004399999999999 Ω*m
Supravodljivost
Magnetizam
type	paramagnetic
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 struktura	{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
Youngov modul elastičnosti	45 GPa
Poissonov omjer	0,29
brzina zvuka	4.602 m/s
classification
Kategorija	Aktinoidi, 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
Nuklearni udarni presjek	0,063
Neutron Mass Absorption	0,0001
Kvantni brojevi	1S0
space group	194 (P63/mmc)

Isotopes of Magnesium

Stabilni izotopi	3
Nestabilni izotopi	20
Natural Isotopes	3

¹⁹Mg

Maseni broj	19
neutron number	7
Relativna Atomska Masa	19,03417992 ± 0,000064413 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	5 ± 3 ps
spin	1/2
nuclear quadrupole moment	0
vrijeme otkrića ili izuma	2007
Parnost	-

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

²⁰Mg

Maseni broj	20
neutron number	8
Relativna Atomska Masa	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
vrijeme otkrića ili izuma	1974
Parnost	+

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

²¹Mg

Maseni broj	21
neutron number	9
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
spin	5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1963
Parnost	+

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
neutron number	10
Relativna Atomska Masa	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
vrijeme otkrića ili izuma	1961
Parnost	+

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

²³Mg

Maseni broj	23
neutron number	11
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
spin	3/2
nuclear quadrupole moment	0,114 ± 0,003
vrijeme otkrića ili izuma	1939
Parnost	+

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

²⁴Mg

Maseni broj	24
neutron number	12
Relativna Atomska Masa	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
vrijeme otkrića ili izuma	1920
Parnost	+

²⁵Mg

Maseni broj	25
neutron number	13
Relativna Atomska Masa	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
vrijeme otkrića ili izuma	1920
Parnost	+

²⁶Mg

Maseni broj	26
neutron number	14
Relativna Atomska Masa	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
vrijeme otkrića ili izuma	1920
Parnost	+

²⁷Mg

Maseni broj	27
neutron number	15
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
spin	1/2
nuclear quadrupole moment	0
vrijeme otkrića ili izuma	1934
Parnost	+

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

²⁸Mg

Maseni broj	28
neutron number	16
Relativna Atomska Masa	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
vrijeme otkrića ili izuma	1953
Parnost	+

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

²⁹Mg

Maseni broj	29
neutron number	17
Relativna Atomska Masa	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
vrijeme otkrića ili izuma	1971
Parnost	+

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

³⁰Mg

Maseni broj	30
neutron number	18
Relativna Atomska Masa	29,990465454 ± 0,00000139 Da
g-factor	0
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	317 ± 4 ms
spin	0
nuclear quadrupole moment	0
vrijeme otkrića ili izuma	1971
Parnost	+

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

³¹Mg

Maseni broj	31
neutron number	19
Relativna Atomska Masa	30,996648232 ± 0,0000033 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	270 ± 2 ms
spin	1/2
nuclear quadrupole moment	0
vrijeme otkrića ili izuma	1977
Parnost	+

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

³²Mg

Maseni broj	32
neutron number	20
Relativna Atomska Masa	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
vrijeme otkrića ili izuma	1977
Parnost	+

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

³³Mg

Maseni broj	33
neutron number	21
Relativna Atomska Masa	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
vrijeme otkrića ili izuma	1979
Parnost	-

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

³⁴Mg

Maseni broj	34
neutron number	22
Relativna Atomska Masa	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
vrijeme otkrića ili izuma	1979
Parnost	+

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

³⁵Mg

Maseni broj	35
neutron number	23
Relativna Atomska Masa	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
vrijeme otkrića ili izuma	1989
Parnost	-

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

³⁶Mg

Maseni broj	36
neutron number	24
Relativna Atomska Masa	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
vrijeme otkrića ili izuma	1989
Parnost	+

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

³⁷Mg

Maseni broj	37
neutron number	25
Relativna Atomska Masa	37,030286265 ± 0,00075035 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	8 ± 4 ms
spin	3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1996
Parnost	-

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

³⁸Mg

Maseni broj	38
neutron number	26
Relativna Atomska Masa	38,03658 ± 0,00054 Da
g-factor	0
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	0
nuclear quadrupole moment	0
vrijeme otkrića ili izuma	1997
Parnost	+

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

³⁹Mg

Maseni broj	39
neutron number	27
Relativna Atomska Masa	39,045921 ± 0,000551 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma
Parnost	-

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

⁴⁰Mg

Maseni broj	40
neutron number	28
Relativna Atomska Masa	40,053194 ± 0,000537 Da
g-factor	0
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	0
nuclear quadrupole moment	0
vrijeme otkrića ili izuma	2007
Parnost	+

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

⁴¹Mg

Maseni broj	41
neutron number	29
Relativna Atomska Masa	41,062373 ± 0,000537 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma
Parnost	-

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

povijest

otkrio/izumio	Sir Humphrey Davy
location of discovery	England
vrijeme otkrića ili izuma	1808
Etimologija	From Magnesia ancient city in district of Thessaly, Greece.
pronunciation	mag-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

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

Magnezij on ChemicalAid

Magnezij (Mg)

Physical Property

Kemijsko Svojstvo

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

povijest

source

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