Natrium

Natrium (Na)

grundämne
Atomnummer11
Atommassa22.98976928
masstal23
Grupp1
Period3
Blocks
Protoner11 p+
Neutroner12 n0
Electrons11 e-
Animated Bohrs atommodell of Na (Natrium)

Egenskaper

fysisk egenskap
atomradie
180 pm
molvolym
23,7 cm³/mol
kovalent radie
155 pm
Metallic Radius
157 pm
ionic radius
99 pm
Crystal Radius
113 pm
Van der Waalsradie
227 pm
densitet
0,97 g/cm³
energi
proton affinity
Elektronaffinitet
0,547926 eV/particle
joniseringsenergi
5,1390767 eV/particle
joniseringsenergi of Na (Natrium)
ångbildningsvärme
97,9 kJ/mol
smältvärme
2,64 kJ/mol
Bildningsentalpi
107,5 kJ/mol
Electrons
electron shell2, 8, 1
Bohrs atommodell: Na (Natrium)
valenselektron1
Elektronformel: Na (Natrium)
elektronkonfiguration[Ne] 3s1
Enhanced Bohrs atommodell of Na (Natrium)
Orbital Diagram of Na (Natrium)
oxidationstal-1, 0, 1
elektronegativitet
0.93
Electrophilicity
0,8805526605183994 eV/particle
Phases
aggregationstillståndFast
Gas Phase
Kokpunkt
1 156,09 K
Smältpunkt
370,944 K
critical pressure
35 MPa
critical temperature
2 573,15 K
trippelpunkt
Visual
färg
Silver
appearancesilvery white metallic
Brytningsindex
materialegenskap
Värmeledningsförmåga
142 W/(m K)
termisk expansion
0,00007 1/K
molar heat capacity
28,23 J/(mol K)
Specifik värmekapacitet
1,228 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
elektrisk konduktivitet
21 MS/m
resistivitet
0,00000004699999999998 m Ω
supraledare
magnetism
typeparamagnetic
magnetisk susceptibilitet (Mass)
0,0000000088 m³/Kg
magnetisk susceptibilitet (Molar)
0,0000000002 m³/mol
magnetisk susceptibilitet (Volume)
0,0000086
magnetic ordering
Curiepunkten
Néel temperature
Structure
KristallstrukturRymdcentrerat kubisk (BCC)
Gitterkonstant
4,23 Å
Lattice Anglesπ/2, π/2, π/2
mekanisk materialegenskap
hårdhet
0,5 MPa
Kompressibilitet
6,3 GPa
skjuvmodul
3,3 GPa
Young's modulus
10 GPa
Poissons konstant
ljudhastighet
3 200 m/s
klassificering
KategoriAlkalimetaller, Alkali metals
CAS GroupIA
IUPAC GroupIA
Glawe Number11
Mendeleev Number2
Pettifor Number11
Geochemical Classmajor
Goldschmidt classificationlitophile
övrigt
Gas Basicity
Dipole Polarizability
162,7 ± 0,5 a₀
C6 Dispersion Coefficient
1 518 a₀
Allotropes
Träffyta
0,53
Neutron Mass Absorption
0,0007
kvanttal2S1/2
rymdgrupp229 (Im_3m)

Natriumisotoper

Stabila isotoper1
Instabila isotoper22
Radioactive Isotopes19

17Na

natural abundance
relative atomic mass
17,037273 ± 0,000064 Da
masstal17
g-factor
Halveringstid
Spinn1/2
nuclear quadrupole moment
0
upptäcktsdatum2017
Paritet+
17Na Decay Modes
decay modeIntensitet
p (proton emission)100%

18Na

natural abundanceRadioactive ☢️
relative atomic mass
18,026879388 ± 0,000100785 Da
masstal18
g-factor
Halveringstid
1,3 ± 0,4 zs
Spinn1
nuclear quadrupole moment
upptäcktsdatum2004
Paritet-
18Na Decay Modes
decay modeIntensitet
p (proton emission)%

19Na

natural abundanceRadioactive ☢️
relative atomic mass
19,013880264 ± 0,000011309 Da
masstal19
g-factor
Halveringstid
Spinn5/2
nuclear quadrupole moment
upptäcktsdatum1969
Paritet+
19Na Decay Modes
decay modeIntensitet
p (proton emission)100%

20Na

natural abundanceRadioactive ☢️
relative atomic mass
20,007354301 ± 0,00000119 Da
masstal20
g-factor
0,1847 ± 0,0001
Halveringstid
447,9 ± 2,3 ms
Spinn2
nuclear quadrupole moment
0,101 ± 0,008
upptäcktsdatum1950
Paritet+
20Na Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)100%
β+α (β+-delayed α emission)25%

21Na

natural abundanceRadioactive ☢️
relative atomic mass
20,997654459 ± 0,000000045 Da
masstal21
g-factor
1,5907333333333 ± 0,000026666666666667
Halveringstid
22,455 ± 0,0054 s
Spinn3/2
nuclear quadrupole moment
0,138 ± 0,011
upptäcktsdatum1940
Paritet+
21Na Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)100%

22Na

natural abundanceRadioactive ☢️
relative atomic mass
21,994437547 ± 0,000000141 Da
masstal22
g-factor
0,582 ± 0,001
Halveringstid
2,6019 ± 0,0006 y
Spinn3
nuclear quadrupole moment
0,18 ± 0,011
upptäcktsdatum1935
Paritet+
22Na Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)100%
e+ (positron emission)90.57%
ϵ (electron capture)9.43%

23Na

natural abundance
100
relative atomic mass
22,98976928195 ± 0,00000000194 Da
masstal23
g-factor
1,4783333333333 ± 0,00002
Halveringstid
Spinn3/2
nuclear quadrupole moment
0,104 ± 0,001
upptäcktsdatum1921
Paritet+

24Na

natural abundanceRadioactive ☢️
relative atomic mass
23,990963012 ± 0,000000017 Da
masstal24
g-factor
0,422575 ± 0,0002
Halveringstid
14,956 ± 0,0015 h
Spinn4
nuclear quadrupole moment
upptäcktsdatum1934
Paritet+
24Na Decay Modes
decay modeIntensitet
β− (β− decay)100%

25Na

natural abundanceRadioactive ☢️
relative atomic mass
24,989953974 ± 0,000001288 Da
masstal25
g-factor
1,4732 ± 0,0016
Halveringstid
59,1 ± 0,6 s
Spinn5/2
nuclear quadrupole moment
0,0015 ± 0,0003
upptäcktsdatum1943
Paritet+
25Na Decay Modes
decay modeIntensitet
β− (β− decay)100%

26Na

natural abundanceRadioactive ☢️
relative atomic mass
25,992634649 ± 0,000003759 Da
masstal26
g-factor
0,95033333333333 ± 0,00066666666666667
Halveringstid
1 071,28 ± 0,25 ms
Spinn3
nuclear quadrupole moment
−0,0053 ± 0,0002
upptäcktsdatum1958
Paritet+
26Na Decay Modes
decay modeIntensitet
β− (β− decay)100%

27Na

natural abundanceRadioactive ☢️
relative atomic mass
26,994076408 ± 0,000004 Da
masstal27
g-factor
1,558 ± 0,002
Halveringstid
301 ± 6 ms
Spinn5/2
nuclear quadrupole moment
−0,0071 ± 0,0003
upptäcktsdatum1968
Paritet+
27Na Decay Modes
decay modeIntensitet
β− (β− decay)100%
β− n (β−-delayed neutron emission)0.098%

28Na

natural abundanceRadioactive ☢️
relative atomic mass
27,998939 ± 0,000011 Da
masstal28
g-factor
2,426 ± 0,003
Halveringstid
33,1 ± 1,3 ms
Spinn1
nuclear quadrupole moment
0,389 ± 0,011
upptäcktsdatum1969
Paritet+
28Na Decay Modes
decay modeIntensitet
β− (β− decay)100%
β− n (β−-delayed neutron emission)0.58%

29Na

natural abundanceRadioactive ☢️
relative atomic mass
29,002877091 ± 0,000007876 Da
masstal29
g-factor
1,6326666666667 ± 0,0053333333333333
Halveringstid
43,2 ± 0,4 ms
Spinn3/2
nuclear quadrupole moment
0,085 ± 0,003
upptäcktsdatum1969
Paritet+
29Na Decay Modes
decay modeIntensitet
β− (β− decay)100%
β− n (β−-delayed neutron emission)22%
2n (2-neutron emission)%

30Na

natural abundanceRadioactive ☢️
relative atomic mass
30,009097931 ± 0,000005074 Da
masstal30
g-factor
1,0415 ± 0,005
Halveringstid
45,9 ± 0,7 ms
Spinn2
nuclear quadrupole moment
upptäcktsdatum1969
Paritet+
30Na Decay Modes
decay modeIntensitet
β− (β− decay)100%
β− n (β−-delayed neutron emission)28.6%
2n (2-neutron emission)1.24%
β−α (β−-delayed α emission)5.5%

31Na

natural abundanceRadioactive ☢️
relative atomic mass
31,013146654 ± 0,000015 Da
masstal31
g-factor
Halveringstid
16,8 ± 0,3 ms
Spinn3/2
nuclear quadrupole moment
upptäcktsdatum1969
Paritet+
31Na Decay Modes
decay modeIntensitet
β− (β− decay)100%
β− n (β−-delayed neutron emission)36%
2n (2-neutron emission)0.73%
3n (3-neutron emission)0.05%

32Na

natural abundanceRadioactive ☢️
relative atomic mass
32,020011024 ± 0,00004 Da
masstal32
g-factor
Halveringstid
12,9 ± 0,3 ms
Spinn3
nuclear quadrupole moment
upptäcktsdatum1972
Paritet-
32Na Decay Modes
decay modeIntensitet
β− (β− decay)100%
β− n (β−-delayed neutron emission)26%
2n (2-neutron emission)7.6%

33Na

natural abundanceRadioactive ☢️
relative atomic mass
33,025529 ± 0,000483 Da
masstal33
g-factor
Halveringstid
8,2 ± 0,4 ms
Spinn3/2
nuclear quadrupole moment
upptäcktsdatum1972
Paritet+
33Na Decay Modes
decay modeIntensitet
β− (β− decay)100%
β− n (β−-delayed neutron emission)47%
2n (2-neutron emission)13%

34Na

natural abundanceRadioactive ☢️
relative atomic mass
34,03401 ± 0,0006435 Da
masstal34
g-factor
Halveringstid
5,5 ± 1 ms
Spinn1
nuclear quadrupole moment
upptäcktsdatum1983
Paritet+
34Na Decay Modes
decay modeIntensitet
β− (β− decay)100%
2n (2-neutron emission)50%
β− n (β−-delayed neutron emission)15%

35Na

natural abundanceRadioactive ☢️
relative atomic mass
35,040614 ± 0,00072 Da
masstal35
g-factor
Halveringstid
1,5 ± 0,5 ms
Spinn3/2
nuclear quadrupole moment
upptäcktsdatum1983
Paritet+
35Na Decay Modes
decay modeIntensitet
β− (β− decay)100%
β− n (β−-delayed neutron emission)%
2n (2-neutron emission)%

36Na

natural abundance
relative atomic mass
36,049279 ± 0,000737 Da
masstal36
g-factor
Halveringstid
Spinn
nuclear quadrupole moment
upptäcktsdatum
Paritet
36Na Decay Modes
decay modeIntensitet
n (neutron emission)%

37Na

natural abundanceRadioactive ☢️
relative atomic mass
37,057042 ± 0,000737 Da
masstal37
g-factor
Halveringstid
Spinn3/2
nuclear quadrupole moment
upptäcktsdatum2002
Paritet+
37Na Decay Modes
decay modeIntensitet
β− (β− decay)%
β− n (β−-delayed neutron emission)%
2n (2-neutron emission)%

38Na

natural abundance
relative atomic mass
38,066458 ± 0,000768 Da
masstal38
g-factor
Halveringstid
Spinn
nuclear quadrupole moment
upptäcktsdatum
Paritet
38Na Decay Modes
decay modeIntensitet
n (neutron emission)%

39Na

natural abundanceRadioactive ☢️
relative atomic mass
39,075123 ± 0,000797 Da
masstal39
g-factor
Halveringstid
Spinn3/2
nuclear quadrupole moment
upptäcktsdatum2019
Paritet+
39Na Decay Modes
decay modeIntensitet
β− (β− decay)%
β− n (β−-delayed neutron emission)%
2n (2-neutron emission)%
Sodium Atom

historia

upptäckare eller uppfinnareSir Humphrey Davy
fyndplatsEngland
upptäcktsdatum1807
etymologiMedieval Latin: sodanum, (headache remedy); symbol from Latin natrium, (sodium carbonate).
uttalSO-di-em (engelska)

Sources

Förekomst
Abundance in Earth's crust
23 600 mg/kg
Abundance in Oceans
10 800 mg/L
Abundance in Human Body
0,14 %
Abundance in Meteor
0,55 %
Abundance in Sun
0,004 %
Abundance in Universe
0,002 %

Nuclear Screening Constants

1s0.3741
2p4.1982
2s4.4286
3s8.4926
Natrium on ChemicalAid