Fluor

Fluor (F)

chemical element with symbol F and atomic number 9
Atomic Number9
Atomic Weight18.998403163
Rhif màs19
Group17
Period2
Blockp
Proton9 p+
Niwtron10 n0
Electron9 e-
Animated Bohr model of F (Fluor)

Nodwedd Ffisegol

Atomic Radius
50 pm
molar volume
covalent radius
64 pm
Metallic Radius
ionic radius
128.5 pm
Crystal Radius
114.5 pm
Van der Waals radius
147 pm
density
0.001553 g/cm³
Atomic Radii Of The Elements: Fluor0102030405060708090100110120130140150pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Nodwedd Gemegol

egni
proton affinity
340.1 kJ/mol
electron affinity
3.4011897 eV/particle
ionization energy
17.42282 eV/particle
ionization energy of F (Fluor)
enthalpy of vaporization
6.54 kJ/mol
enthalpy of fusion
0.51 kJ/mol
standard enthalpy of formation
79.335 kJ/mol
Electron
plisgyn yr electron2, 7
Bohr model: F (Fluor)
valence electron7
Lewis structure: F (Fluor)
trefn yr electronnau[He] 2s2 2p5
1s2 2s2 2p5
Enhanced Bohr model of F (Fluor)
Orbital Diagram of F (Fluor)
Cyflwr ocsidiad-1, 0
Electronegatifedd
3.98
Electrophilicity Index
3.865807423136221 eV/particle
cyflwr sylfaenol mater
cyflwr materGas
gaseous state of matterDiatomic
Boiling Point
85.04 K
Melting Point
53.48 K
critical pressure
5.1724 MPa
critical temperature
144.41 K
triple point
53.48 K
90 kPa
appearance
lliw
Colorless
appearance
Mynegrif plygiant
1.000195
nodwedd ffisegol gwrthrych
Thermal Conductivity
0.028 W/(m K)
thermal expansion
molar heat capacity
31.304 J/(mol K)
Specific Heat Capacity
0.824 J/(g⋅K)
heat capacity ratio7/5
electrical properties
type
dargludedd trydanol
Gwrthedd
superconductivity
magnetism
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
Néel temperature
strwythur
Crystal StructureBase Centered Monoclinic (MCL)
lattice constant
Lattice Anglesπ/2, π/2, π/2
nodwedd mecanyddol deunyddiau
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
speed of sound
classification
CategoryHalogens, Halogens
CAS GroupVIIB
IUPAC GroupVIIA
Glawe Number102
Mendeleev Number106
Pettifor Number102
Geochemical Classsemi-volatile
Goldschmidt classificationlitophile

other

Gas Basicity
315.1 kJ/mol
polarizability
3.74 ± 0.08 a₀
C6 Dispersion Coefficient
9.52 a₀
allotropeDifluorine
Neutron cross section
0.0096
Neutron Mass Absorption
0.00002
quantum number2P3/2
space group15 (C12/c1)

Isotopes of Fluorine

Stable Isotopes1
Unstable Isotopes18
Natural Isotopes1

13F

Rhif màs13
neutron number4
relative atomic mass
13.045121 ± 0.000537 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod
parity+

decay modeintensity
p (proton emission)

14F

Rhif màs14
neutron number5
relative atomic mass
14.034315196 ± 0.000044142 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
500 ± 60 ys
spin2
nuclear quadrupole moment
dyddiad darganfod2010
parity-

decay modeintensity
p (proton emission)

15F

Rhif màs15
neutron number6
relative atomic mass
15.017785139 ± 0.000015029 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
1.1 ± 0.3 zs
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1978
parity+

decay modeintensity
p (proton emission)100%

16F

Rhif màs16
neutron number7
relative atomic mass
16.011460278 ± 0.000005758 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
21 ± 5 zs
spin0
nuclear quadrupole moment
0
dyddiad darganfod1964
parity-

decay modeintensity
p (proton emission)100%

17F

Rhif màs17
neutron number8
relative atomic mass
17.002095237 ± 0.000000266 Da
g-factor
1.88852 ± 0.00012
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
64.37 ± 0.027 s
spin5/2
nuclear quadrupole moment
0.076 ± 0.004
dyddiad darganfod1934
parity+

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

18F

Rhif màs18
neutron number9
relative atomic mass
18.000937324 ± 0.000000497 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
109.734 ± 0.008 m
spin1
nuclear quadrupole moment
dyddiad darganfod1937
parity+

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

19F

Rhif màs19
neutron number10
relative atomic mass
18.99840316207 ± 0.00000000088 Da
g-factor
5.256642 ± 0.000008
natural abundance
100
Dadfeilio ymbelydrolstable isotope
Hanner oesNot Radioactive ☢️
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1920
parity+

20F

Rhif màs20
neutron number11
relative atomic mass
19.999981252 ± 0.000000031 Da
g-factor
1.046675 ± 0.000045
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
11.0062 ± 0.008 s
spin2
nuclear quadrupole moment
0.056 ± 0.004
dyddiad darganfod1935
parity+

decay modeintensity
β (β decay)100%

21F

Rhif màs21
neutron number12
relative atomic mass
20.999948893 ± 0.000001932 Da
g-factor
1.56776 ± 0.00048
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
4.158 ± 0.02 s
spin5/2
nuclear quadrupole moment
0.011 ± 0.002
dyddiad darganfod1955
parity+

decay modeintensity
β (β decay)100%

22F

Rhif màs22
neutron number13
relative atomic mass
22.002998812 ± 0.00001331 Da
g-factor
0.6736 ± 0.0001
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
4.23 ± 0.04 s
spin4
nuclear quadrupole moment
0.003 ± 0.002
dyddiad darganfod1965
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)11%

23F

Rhif màs23
neutron number14
relative atomic mass
23.003526875 ± 0.00003577 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
2.23 ± 0.14 s
spin5/2
nuclear quadrupole moment
dyddiad darganfod1970
parity+

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

24F

Rhif màs24
neutron number15
relative atomic mass
24.00809937 ± 0.000104853 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
384 ± 16 ms
spin3
nuclear quadrupole moment
dyddiad darganfod1970
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)5.9%

25F

Rhif màs25
neutron number16
relative atomic mass
25.012167727 ± 0.000103535 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
80 ± 9 ms
spin5/2
nuclear quadrupole moment
dyddiad darganfod1970
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)23.1%
2n (2-neutron emission)

26F

Rhif màs26
neutron number17
relative atomic mass
26.020048065 ± 0.000114898 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
8.2 ± 0.9 ms
spin1
nuclear quadrupole moment
dyddiad darganfod1979
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)13.5%
2n (2-neutron emission)

27F

Rhif màs27
neutron number18
relative atomic mass
27.026981897 ± 0.000129037 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
5 ± 0.2 ms
spin5/2
nuclear quadrupole moment
dyddiad darganfod1981
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)77%
2n (2-neutron emission)

28F

Rhif màs28
neutron number19
relative atomic mass
28.035860448 ± 0.000129198 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
46 zs
spin4
nuclear quadrupole moment
dyddiad darganfod2012
parity-

decay modeintensity
n (neutron emission)100%

29F

Rhif màs29
neutron number20
relative atomic mass
29.043103 ± 0.000564 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
2.5 ± 0.3 ms
spin5/2
nuclear quadrupole moment
dyddiad darganfod1989
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)60%
2n (2-neutron emission)

30F

Rhif màs30
neutron number21
relative atomic mass
30.052561 ± 0.000537 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin
nuclear quadrupole moment
dyddiad darganfod
parity

decay modeintensity
n (neutron emission)

31F

Rhif màs31
neutron number22
relative atomic mass
31.061023 ± 0.000574 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin5/2
nuclear quadrupole moment
dyddiad darganfod1999
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)
Liquid fluorine tighter crop

hanes

darganfyddwr neu ddyfeisiwrHenri Moissan
man darganfodFrance
dyddiad darganfod1886
geirdarddiadLatin: fluere (flow).
ynganiadFLU-eh-reen (Saesneg)

source

Abundance
Abundance in Earth's crust
585 mg/kg
natural abundance (cefnfor)
1.3 mg/L
natural abundance (corff dynol)
0.0037 %
natural abundance (Awyrfaen)
0.0087 %
natural abundance (Haul)
0.00005 %
Abundance in Universe
0.00004 %

Nuclear Screening Constants

1s0.3499
2p3.9
2s3.8724