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Template:Infobox helium

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Helium,  2He
Helium discharge tube.jpg
Helium spectra.jpg
Spectral lines of helium
General properties
Name, symbol helium, He
Pronunciation /ˈhliəm/
HEE-lee-əm
Appearance colorless gas, exhibiting a red-orange glow when placed in an electric field
Helium in the periodic table
Hydrogen (diatomic nonmetal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (polyatomic nonmetal)
Nitrogen (diatomic nonmetal)
Oxygen (diatomic nonmetal)
Fluorine (diatomic nonmetal)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (polyatomic nonmetal)
Sulfur (polyatomic nonmetal)
Chlorine (diatomic nonmetal)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline earth metal)
Scandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Chromium (transition metal)
Manganese (transition metal)
Iron (transition metal)
Cobalt (transition metal)
Nickel (transition metal)
Copper (transition metal)
Zinc (transition metal)
Gallium (post-transition metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (polyatomic nonmetal)
Bromine (diatomic nonmetal)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline earth metal)
Yttrium (transition metal)
Zirconium (transition metal)
Niobium (transition metal)
Molybdenum (transition metal)
Technetium (transition metal)
Ruthenium (transition metal)
Rhodium (transition metal)
Palladium (transition metal)
Silver (transition metal)
Cadmium (transition metal)
Indium (post-transition metal)
Tin (post-transition metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (diatomic nonmetal)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanide)
Cerium (lanthanide)
Praseodymium (lanthanide)
Neodymium (lanthanide)
Promethium (lanthanide)
Samarium (lanthanide)
Europium (lanthanide)
Gadolinium (lanthanide)
Terbium (lanthanide)
Dysprosium (lanthanide)
Holmium (lanthanide)
Erbium (lanthanide)
Thulium (lanthanide)
Ytterbium (lanthanide)
Lutetium (lanthanide)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Rhenium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Gold (transition metal)
Mercury (transition metal)
Thallium (post-transition metal)
Lead (post-transition metal)
Bismuth (post-transition metal)
Polonium (post-transition metal)
Astatine (metalloid)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinide)
Thorium (actinide)
Protactinium (actinide)
Uranium (actinide)
Neptunium (actinide)
Plutonium (actinide)
Americium (actinide)
Curium (actinide)
Berkelium (actinide)
Californium (actinide)
Einsteinium (actinide)
Fermium (actinide)
Mendelevium (actinide)
Nobelium (actinide)
Lawrencium (actinide)
Rutherfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hassium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (transition metal)
Nihonium (unknown chemical properties)
Flerovium (post-transition metal)
Moscovium (unknown chemical properties)
Livermorium (unknown chemical properties)
Tennessine (unknown chemical properties)
Oganesson (unknown chemical properties)


He

Ne
hydrogenheliumlithium
Atomic number (Z) 2
Group, block group 18 (noble gases), s-block
Period period 1
Element category   noble gas
Standard atomic weight (±) (Ar) 4.002602(2)[1]
Electron configuration 1s2
Electrons per shell
2
Physical properties
Phase gas
Melting point 0.95 K ​(−272.20 °C, ​−457.96 °F) (at 2.5 MPa)
Boiling point 4.222 K ​(−268.928 °C, ​−452.070 °F)
Density at stp (0 °C and 101.325 kPa) 0.1786 g/L
when liquid, at m.p. 0.145 g/cm3
when liquid, at b.p. 0.125 g/cm3
Triple point 2.177 K, ​5.043 kPa
Critical point 5.1953 K, 0.22746 MPa
Heat of fusion 0.0138 kJ/mol
Heat of vaporization 0.0829 kJ/mol
Molar heat capacity 20.78[2] J/(mol·K)
Vapor pressure (defined by ITS-90)
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K)     1.23 1.67 2.48 4.21
Atomic properties
Oxidation states 0
Electronegativity Pauling scale: no data
Ionization energies 1st: 2372.3 kJ/mol
2nd: 5250.5 kJ/mol
Covalent radius 28 pm
Van der Waals radius 140 pm
Miscellanea
Crystal structure hexagonal close-packed (hcp)
Hexagonal close-packed crystal structure for helium
Speed of sound 972 m/s
Thermal conductivity 0.1513 W/(m·K)
Magnetic ordering diamagnetic[3]
Magnetic susceptibility (χmol) −1.88·10−6 cm3/mol (298 K)[4]
CAS Number 7440-59-7
History
Naming after Helios, Greek god of the Sun
Discovery Pierre Janssen, Norman Lockyer (1868)
First isolation William Ramsay, Per Teodor Cleve, Abraham Langlet (1895)
Most stable isotopes of helium
iso NA half-life DM DE (MeV) DP
3He 0.0002% is stable with 1 neutron
4He 99.9998% is stable with 2 neutrons
| references | in Wikidata

Element navigation

heliumPT
H ←
ibox E
→ Li

References

These references will appear in the article, but this list appears only on this page.
  1. ^ Standard Atomic Weights 2013. Commission on Isotopic Abundances and Atomic Weights
  2. ^ Shuen-Chen Hwang, Robert D. Lein, Daniel A. Morgan (2005). "Noble Gases". Kirk Othmer Encyclopedia of Chemical Technology. Wiley. pp. 343–383. doi:10.1002/0471238961.0701190508230114.a01.
  3. ^ Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81st edition, CRC press.
  4. ^ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4. 
Template documentation[view] [edit] [history] [purge]

Infoboxes for the chemical elements use the core template {{Infobox element}}.

Parameters

In general

Usually parameters reproduce the value, and the template adds the SI unit or additional standard text. While the topic is technical, we can strive to make the result readable text, and even verbose. For example, this is why the template writes "(at 0 °C)". For this, you may want to experiment with parameter input too - or propose improvements.

All this can vary across the values (data rows). So depending on the row and the specific value, additional formattings may be added by the template (e.g., a newline <br>)

Parameter naming patterns

Most parameters have a ... ref that allows for references. This reference is added right after the unit.

ionization energy ref

Parameters with a .. comment suffix are added to the end of a data line, with a space added. Comments are reproduced without formatting additions (no brackets, no italics, ...):

ionization energy comment

Numbered values make a list (except |atomic mass 2= used for uncertainty bracket notation):

ionization energy
ionization energy 2
ionization energy 3
Parameter list
This parameter list: ‹See Tfd›view · edit
{{Infobox element
<!-- top -->
|image name=
|image alt=
|image size=
|image name comment=
|image name 2=
|image alt 2=
|image size 2=
|image name 2 comment=
<!-- General properties -->
|name=
|symbol=
|pronounce=
|pronounce ref=
|pronounce comment=
|pronounce 2=
|alt name=
|alt names=
|allotropes=
|appearance=
<!-- Periodic table -->
|above=
|below=
|left=
|right=
|number=
|atomic mass=
|atomic mass 2=
|atomic mass ref=
|atomic mass comment=
|series=
|series ref=
|series comment=
|series color=
|group=
|group ref=
|group comment=
|period=
|period ref=
|period comment=
|block=
|block ref=
|block comment=
|electron configuration=
|electron configuration ref=
|electron configuration comment=
|electrons per shell=
|electrons per shell ref=
|electrons per shell comment=
<!-- Physical properties -->
|physical properties comment=
|color=
|phase=
|phase ref=
|phase comment=
|melting point K=
|melting point C=
|melting point F=
|melting point ref=
|melting point comment=
|boiling point K=
|boiling point C=
|boiling point F=
|boiling point ref=
|boiling point comment=
|sublimation point K=
|sublimation point C=
|sublimation point F=
|sublimation point ref=
|sublimation point comment=
|density gplstp=
|density gplstp ref=
|density gplstp comment=
|density kgpm3stp=
|density kgpm3stp ref=
|density kgpm3stp comment=
|density gpcm3nrt=
|density gpcm3nrt ref=
|density gpcm3nrt comment=
|density gpcm3nrt 2=
|density gpcm3nrt 2 ref=
|density gpcm3nrt 2 comment=
|density gpcm3nrt 3=
|density gpcm3nrt 3 ref=
|density gpcm3nrt 3 comment=
|density gpcm3mp=
|density gpcm3mp ref=
|density gpcm3mp comment=
|density gpcm3bp=
|density gpcm3bp ref=
|density gpcm3bp comment=
|molar volume=
|molar volume unit =
|molar volume ref=
|molar volume comment=
|triple point K=
|triple point kPa=
|triple point ref=
|triple point comment=
|triple point K 2=
|triple point kPa 2=
|triple point 2 ref=
|triple point 2 comment=
|critical point K=
|critical point MPa=
|critical point ref=
|critical point comment=
|heat fusion=
|heat fusion ref=
|heat fusion comment=
|heat fusion 2=
|heat fusion 2 ref=
|heat fusion 2 comment=
|heat vaporization=
|heat vaporization ref=
|heat vaporization comment=
|heat capacity=
|heat capacity ref=
|heat capacity comment=
|heat capacity 2=
|heat capacity 2 ref=
|heat capacity 2 comment=
|vapor pressure 1=
|vapor pressure 10=
|vapor pressure 100=
|vapor pressure 1 k=
|vapor pressure 10 k=
|vapor pressure 100 k=
|vapor pressure ref=
|vapor pressure comment=
|vapor pressure 1 2=
|vapor pressure 10 2=
|vapor pressure 100 2=
|vapor pressure 1 k 2=
|vapor pressure 10 k 2=
|vapor pressure 100 k 2=
|vapor pressure 2 ref=
|vapor pressure 2 comment=
<!-- Atomic properties -->
|atomic properties comment=
|oxidation states=
|oxidation states ref=
|oxidation states comment=
|electronegativity=
|electronegativity ref=
|electronegativity comment=
|ionization energy 1=
|ionization energy 1 ref=
|ionization energy 1 comment=
|ionization energy 2=
|ionization energy 2 ref=
|ionization energy 2 comment=
|ionization energy 3=
|ionization energy 3 ref=
|ionization energy 3 comment=
|number of ionization energies=
|ionization energy ref=
|ionization energy comment=
|atomic radius=
|atomic radius ref=
|atomic radius comment=
|atomic radius calculated=
|atomic radius calculated ref=
|atomic radius calculated comment=
|covalent radius=
|covalent radius ref=
|covalent radius comment=
|Van der Waals radius=
|Van der Waals radius ref=
|Van der Waals radius comment=
<!-- Miscellanea -->
|crystal structure=
|crystal structure prefix=
|crystal structure ref=
|crystal structure comment=
|crystal structure 2=
|crystal structure 2 prefix=
|crystal structure 2 ref=
|crystal structure 2 comment=
|speed of sound=
|speed of sound ref=
|speed of sound comment=
|speed of sound rod at 20=
|speed of sound rod at 20 ref=
|speed of sound rod at 20 comment=
|speed of sound rod at r.t.=
|speed of sound rod at r.t. ref=
|speed of sound rod at r.t. comment=
|thermal expansion=
|thermal expansion ref=
|thermal expansion comment=
|thermal expansion at 25=
|thermal expansion at 25 ref=
|thermal expansion at 25 comment=
|thermal conductivity=
|thermal conductivity ref=
|thermal conductivity comment=
|thermal conductivity 2=
|thermal conductivity 2 ref=
|thermal conductivity 2 comment=
|thermal diffusivity=
|thermal diffusivity ref=
|thermal diffusivity comment=
|electrical resistivity=
|electrical resistivity unit prefix=
|electrical resistivity ref=
|electrical resistivity comment=
|electrical resistivity at 0=
|electrical resistivity at 0 ref=
|electrical resistivity at 0 comment=
|electrical resistivity at 20=
|electrical resistivity at 20 ref=
|electrical resistivity at 20 comment=
|band gap=
|band gap ref=
|band gap comment=
|Curie point K=
|Curie point ref=
|Curie point comment=
|magnetic ordering=
|magnetic ordering ref=
|magnetic ordering comment=
|tensile strength=
|tensile strength ref=
|tensile strength comment=
|Young's modulus=
|Young's modulus ref=
|Young's modulus comment=
|Shear modulus=
|Shear modulus ref=
|Shear modulus comment=
|Bulk modulus=
|Bulk modulus ref=
|Bulk modulus comment=
|Poisson ratio=
|Poisson ratio ref=
|Poisson ratio comment=
|Mohs hardness=
|Mohs hardness ref=
|Mohs hardness comment=
|Mohs hardness 2=
|Mohs hardness 2 ref=
|Mohs hardness 2 comment=
|Vickers hardness=
|Vickers hardness ref=
|Vickers hardness comment=
|Brinell hardness=
|Brinell hardness ref=
|Brinell hardness comment=
|CAS number=
|CAS number ref=
|CAS number comment=
<!-- History -->
|naming=
|predicted by=
|prediction date ref=
|prediction date=
|discovered by=
|discovery date ref=
|discovery date=
|first isolation by=
|first isolation date ref=
|first isolation date=
|discovery and first isolation by=
|named by=
|named date ref=
|named date=
|history comment label=
|history comment=
<!-- Isotopes -->
|isotopes=
|isotopes ref=
|isotopes comment=
<!-- other -->
|engvar=
|QID=
 }}
{{Infobox element}}; labels & notes:
 
(Image)
 
 
 
(Image 2)
 
 
 
GENERAL PROPERTIES
Name
Symbol
Pronunciation
 
 
 
Alternative name(s)
 
Allotropes
Appearance
<element> IN THE PERIODIC TABLE
Periodic table
 
 
 
Atomic number
Standard atomic weight
uncertainty to use in (bracket notation)
 
 
Element category (also header bg color)
 
 
(sets header bg color, over 'series='-color)
Group
 
 
Period
 
 
Block
 
 
Electron configuration
 
 
Electrons per shell
 
 
PHYSICAL PROPERTIES
(general note)
Color
Phase
 
 
Melting point
 
 
 
 
Boiling point
 
 
 
 
Sublimation point
 
 
 
 
Density [g/L at s.t.p.]
 
 
Density [kg/m3 at s.t.p.]
 
 
Density [g/cm3 near room temperature]
 
 
 [g/cm3 near r.t.], #2
 
 
 [g/cm3 near r.t.], #3
 
 
Density (liquid, melting point) [g/cm3]
 
 
Density (liquid, boiling point) [g/cm3]
 
 
Molar volume
Unit defaults to cm3/mol
 otherwise set unit prefix=d for dm3/mol (gases)
 
Triple point
 
 
 
 
 
 
 
Critical point
 
 
 
Heat of fusion
 
 
 
 
 
Heat of vaporization
 
 
Molar heat capacity
 
 
 
 
 
Vapor pressure
 
 
 
 
 
 
 
Vapor pressure
 
 
 
 
 
 
 
ATOMIC PROPERTIES

Oxidation states
 
 
Electronegativity
 
 
Ionization energy
 
 
 
 
 
 
 
 
 
 
 
Atomic radius
 
 
 
 
 
Covalent radius
 
 
Van der Waals radius
 
 
MISCELLANEA
Crystal structure
 
 
 
Crystal structure
 
 
 
Speed of sound
 
 
 
 
 
 
 
 
Thermal expansion
 
 
 
 
 
Thermal conductivity
 
 
 
 
 
Thermal diffusivity
 
 
Electrical resistivity
 
 
 
 
 
 
 
 
 
Band gap
 
 
Curie point
 
 
Magnetic ordering
 
 
Tensile strength
 
 
Young's modulus
 
 
Shear modulus
 
 
Bulk modulus
 
 
Poisson ratio
 
 
Mohs hardness
 
 
 
 
 
Vickers hardness
 
 
Brinell hardness
 
 
CAS Number
 
 
HISTORY
Naming
Prediction
 
()
Discovery
 
()
First isolation
 
()
Discovery and first isolation (1 or 2 dates)
Named by
 
()
 
(History comment)
ISOTOPES OF <element>
Isotopes of <element>
 
(wp:engvar)
 

Subtemplates

Isotopes

Isotopes

Isotopes are to be entered by the editor using these subtemplates:

Examples (from various elements):

| isotopes =
{{Infobox element/isotopes stable
  | link=Fluorine-19
  | mn=19
  | sym=F
  | na=100%
  | n=10
}}
{{Infobox element/isotopes decay
  | mn=251
  | sym=Cf
  | na=trace
  | hl=898 y
  | dm=α
  | de=6.172
  | link1=curium-247
  | pn=247
  | ps=Cm
}}
{{Infobox element/isotopes decay2
  | mn=252
  | sym=Cf
  | na=trace
  | hl=2.645 y
  | dm1=α (96.91%)
  | de1=6.217
  | link1=curium-248
  | pn1=248
  | ps1=Cm
  | dm2=SF (3.09%)
  | de2=–
  | pn2=
  | ps2=–
}}
{{Infobox element/isotopes decay3
  | mn=26
  | sym=Al
  | na=[[trace radioisotope|trace]]
  | hl=7.17×105 y
  | dm1=[[Positron emission|β<sup>+</sup>]]
  | de1=1.17
  | link1=magnesium-26
  | pn1=26
  | ps1=Mg
  | dm2=[[electron capture|ε]]
  | de2=–
  | link2=magnesium-26
  | pn2=26
  | ps2=Mg
  | dm3=[[Gamma radiation|γ]]
  | de3=1.8086
  | pn3=
  | ps3=–
}}
{{Infobox element/isotopes decay3 (2 2 1)
  | mn=22
  | sym=Na
  | na=[[trace radioisotope|trace]]
  | hl=[[1 E7 s|2.602 y]]
  | dm1=[[Beta decay|β<sup>+</sup>]]→[[Gamma decay|γ]]
  | de1a=0.5454
  | link1a=neon-22
  | pn1a=22
  | ps1a=Ne*
  | de1b=1.27453(2)<ref name=npa521_1>{{cite journal|author=Endt, P. M.
        |title=Energy levels of A = 21–44 nuclei (VII)
        |journal=Nuclear Physics A
        }}</ref>
  | pn1b=22
  | ps1b=Ne
  | dm2=[[electron capture|ε]]→[[Gamma decay|γ]]
  | de2a=–
  | pn2a=22
  | ps2a=Ne*
  | de2b=1.27453(2)
  | pn2b=22
  | ps2b=Ne
  | dm3=[[Beta decay|β<sup>+</sup>]]
  | de3=1.8200
  | pn3=22
  | ps3=Ne
}}
{{Infobox element/isotopes_decay4
  | mn=260
  | sym=Md
  | na=[[synthetic radioisotope|syn]]
  | hl=31.8 [[day|d]]
  | dm1=SF
  | de1=–
  | pn1=
  | ps1=–
  | dm2=α
  | de2=7.000
  | link2=einsteinium-256
  | pn2=256
  | ps2=Es
  | dm3=ε
  | de3=–
  | link3=fermium-260
  | pn3=260
  | ps3=Fm
  | dm4=[[beta emission|β<sup>−</sup>]]
  | de4=1.000
  | link4=nobelium-260
  | pn4=260
  | ps4=No
}}
  |isotopes comment=reference{{sfn|Chisté|2006
}}<br/><!-- ---- ---- ---- ---- ---- ---- ---- ---- -->
* = [[excited state]]

produces the subtable:

Demo,  00Xx
General properties
Name, symbol demo, {{{symbol}}}
Demo in the periodic table
Hydrogen (diatomic nonmetal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (polyatomic nonmetal)
Nitrogen (diatomic nonmetal)
Oxygen (diatomic nonmetal)
Fluorine (diatomic nonmetal)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (polyatomic nonmetal)
Sulfur (polyatomic nonmetal)
Chlorine (diatomic nonmetal)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline earth metal)
Scandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Chromium (transition metal)
Manganese (transition metal)
Iron (transition metal)
Cobalt (transition metal)
Nickel (transition metal)
Copper (transition metal)
Zinc (transition metal)
Gallium (post-transition metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (polyatomic nonmetal)
Bromine (diatomic nonmetal)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline earth metal)
Yttrium (transition metal)
Zirconium (transition metal)
Niobium (transition metal)
Molybdenum (transition metal)
Technetium (transition metal)
Ruthenium (transition metal)
Rhodium (transition metal)
Palladium (transition metal)
Silver (transition metal)
Cadmium (transition metal)
Indium (post-transition metal)
Tin (post-transition metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (diatomic nonmetal)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanide)
Cerium (lanthanide)
Praseodymium (lanthanide)
Neodymium (lanthanide)
Promethium (lanthanide)
Samarium (lanthanide)
Europium (lanthanide)
Gadolinium (lanthanide)
Terbium (lanthanide)
Dysprosium (lanthanide)
Holmium (lanthanide)
Erbium (lanthanide)
Thulium (lanthanide)
Ytterbium (lanthanide)
Lutetium (lanthanide)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Rhenium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Gold (transition metal)
Mercury (transition metal)
Thallium (post-transition metal)
Lead (post-transition metal)
Bismuth (post-transition metal)
Polonium (post-transition metal)
Astatine (metalloid)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinide)
Thorium (actinide)
Protactinium (actinide)
Uranium (actinide)
Neptunium (actinide)
Plutonium (actinide)
Americium (actinide)
Curium (actinide)
Berkelium (actinide)
Californium (actinide)
Einsteinium (actinide)
Fermium (actinide)
Mendelevium (actinide)
Nobelium (actinide)
Lawrencium (actinide)
Rutherfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hassium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (transition metal)
Nihonium (unknown chemical properties)
Flerovium (post-transition metal)
Moscovium (unknown chemical properties)
Livermorium (unknown chemical properties)
Tennessine (unknown chemical properties)
Oganesson (unknown chemical properties)
{{{above}}}

{{{symbol}}}

{{{below}}}
{{{left}}} ← demo → {{{right}}}
Atomic number (Z) {{{number}}}
Group, block group n/a, [[{{{block}}}-block]]
Period [[Period (periodic table)#Period {{{period}}}|period {{{period}}}]]
Standard atomic weight (Ar)
Electron configuration {{{electron configuration}}}
Physical properties
Atomic properties
Most stable isotopes of demo
iso NA half-life DM DE (MeV) DP
19F 100% is stable with 10 neutrons
251Cf trace 898 y α 6.172 247Cm
252Cf trace 2.645 y α (96.91%) 6.217 248Cm
SF (3.09%)
26Al trace 7.17×105 y β+ 1.17 26Mg
ε 26Mg
γ 1.8086
22Na trace 2.602 y β+γ 0.5454 22Ne*
1.27453(2)[1] 22Ne
εγ 22Ne*
1.27453(2) 22Ne
β+ 1.8200 22Ne
260Md syn 31.8 d SF
α 7.000 256Es
ε 260Fm
β 1.000 260No

reference[2]

* = excited state
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{{Periodic table (32 columns, micro)}}
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Note: in no situation should the formal IUPAC name be changed (always aluminium, not aluminum), except when this spelling is the topic.

References

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  1. ^ Endt, P. M. "Energy levels of A = 21–44 nuclei (VII)". Nuclear Physics A. 
  2. ^ Chisté 2006.

See also

Index to chemical element infoboxes
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
ibox E
iso
15
P
iso
16
S
iso
19
K
iso
23
V
iso
39
Y
iso
53
I
1 asterisk
iso
74
W
1 asterisk
iso
104
Rf
iso
105
Db
iso
106
Sg
iso
107
Bh
iso
108
Hs
iso
109
Mt
iso
110
Ds
iso
111
Rg
iso
112
Cn
iso
113
Nh
iso
114
Fl
iso
115
Mc
iso
116
Lv
iso
117
Ts
iso
118
Og
iso
119
Uue
iso
120
Ubn
1 asterisk
1 asterisk
iso
92
U
iso
100
Fm
iso
101
Md
iso
102
No
iso
103
Lr
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