Бор

Бор (B)

chemical element with symbol B and atomic number 5
Atomic Number5
Atomic Weight10.81
Адади массавӣ11
Group13
Period2
Blockp
proton5 p+
neutron6 n0
electron5 e-
Animated Bohr model of B (Бор)

Хусусияти Физикӣ

Atomic Radius
molar volume
covalent radius
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
зичӣ
Atomic Radii Of The Elements: Бор0102030405060708090100110120130140150160170180190200pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

энергия
proton affinity
electron affinity
ionization energy
ionization energy of B (Бор)
enthalpy of vaporization
гармои гудозиш
standard enthalpy of formation
electron
Абри электронӣ2, 3
Bohr model: B (Бор)
valence electron3
Lewis structure: B (Бор)
electron configuration[He] 2s2 2p1
1s2 2s2 2p1
Enhanced Bohr model of B (Бор)
Orbital Diagram of B (Бор)
oxidation number-5, -1, 0, 1, 2, 3
electronegativity
2.04
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
triple point
appearance
Ранг
Black
appearanceblack-brown
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
навъInsulator
electrical conductivity
electrical resistivity
superconductivity
magnetism
навъdiamagnetic
magnetic susceptibility (Mass)
-0,0000000087 m³/Kg
magnetic susceptibility (Molar)
-0,0000000000941 m³/mol
magnetic susceptibility (Volume)
-0,0000214
magnetic ordering
Curie temperature
Néel temperature
сохт
Crystal StructureSimple Trigonal (TET)
lattice constant
Lattice Angles1.01334, 1.01334, 1.01334
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
speed of sound
classification
CategoryMetalloids, Metalloids
CAS GroupIIIB
IUPAC GroupIIIA
Glawe Number86
Mendeleev Number81
Pettifor Number86
Geochemical Class
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotropeAlpha Rhombohedral Boron, Beta Rhombohedral Boron, Alpha Tetragonal Boron
Neutron cross section
760
Neutron Mass Absorption
2,4
ададҳои квантӣ2P1/2
space group166 (R_3m)

Isotopes of Boron

Stable Isotopes2
Unstable Isotopes14
Natural Isotopes2
Isotopic Composition1180.35%1180.35%1019.65%1019.65%

6B

Адади массавӣ6
neutron number1
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin2
nuclear quadrupole moment
таърихи кашф
parity-

decay modeintensity
2p (2-proton emission)

7B

Адади массавӣ7
neutron number2
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
570 ± 14 ys
spin3/2
nuclear quadrupole moment
таърихи кашф1967
parity-

decay modeintensity
p (proton emission)100%

8B

Адади массавӣ8
neutron number3
Relative Atomic Mass
g-factor
0,51775 ± 0,00015
natural abundance
radioactivity☢️ radioactive element
half-life
771,9 ± 0,9 ms
spin2
nuclear quadrupole moment
0,0643 ± 0,0014
таърихи кашф1950
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+α (β+-delayed α emission)100%

9B

Адади массавӣ9
neutron number4
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
800 ± 300 zs
spin3/2
nuclear quadrupole moment
таърихи кашф1940
parity-

decay modeintensity
p (proton emission)100%

10B

Адади массавӣ10
neutron number5
Relative Atomic Mass
g-factor
0,60015453333333 ± 0,00000026666666666667
natural abundance
19,65 ± 0,44
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin3
nuclear quadrupole moment
0,0846 ± 0,0002
таърихи кашф1920
parity+

11B

Адади массавӣ11
neutron number6
Relative Atomic Mass
g-factor
1,792252 ± 0,00000066666666666667
natural abundance
80,35 ± 0,44
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0,04059 ± 0,0001
таърихи кашф1920
parity-

12B

Адади массавӣ12
neutron number7
Relative Atomic Mass
g-factor
1,003 ± 0,001
natural abundance
radioactivity☢️ radioactive element
half-life
20,2 ± 0,02 ms
spin1
nuclear quadrupole moment
0,0132 ± 0,0003
таърихи кашф1935
parity+

decay modeintensity
β (β decay)100%
βα (β-delayed α emission)0.6%

13B

Адади массавӣ13
neutron number8
Relative Atomic Mass
g-factor
2,1185333333333 ± 0,00033333333333333
natural abundance
radioactivity☢️ radioactive element
half-life
17,16 ± 0,18 ms
spin3/2
nuclear quadrupole moment
0,0365 ± 0,0008
таърихи кашф1956
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.266%

14B

Адади массавӣ14
neutron number9
Relative Atomic Mass
g-factor
0,5925 ± 0,0025
natural abundance
radioactivity☢️ radioactive element
half-life
12,36 ± 0,29 ms
spin2
nuclear quadrupole moment
0,0297 ± 0,0008
таърихи кашф1966
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)6.04%
2n (2-neutron emission)

15B

Адади массавӣ15
neutron number10
Relative Atomic Mass
g-factor
1,7726666666667 ± 0,01
natural abundance
radioactivity☢️ radioactive element
half-life
10,18 ± 0,35 ms
spin3/2
nuclear quadrupole moment
0,0379 ± 0,0011
таърихи кашф1966
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)98.7%
2n (2-neutron emission)1.5%

16B

Адади массавӣ16
neutron number11
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
таърихи кашф2000
parity-

decay modeintensity
n (neutron emission)

17B

Адади массавӣ17
neutron number12
Relative Atomic Mass
g-factor
1,7 ± 0,013333333333333
natural abundance
radioactivity☢️ radioactive element
half-life
5,08 ± 0,05 ms
spin3/2
nuclear quadrupole moment
0,0385 ± 0,0015
таърихи кашф1973
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)63%
2n (2-neutron emission)12%
3n (3-neutron emission)3.5%
4n0.4%

18B

Адади массавӣ18
neutron number13
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin2
nuclear quadrupole moment
таърихи кашф2010
parity-

decay modeintensity
n (neutron emission)100%

19B

Адади массавӣ19
neutron number14
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,92 ± 0,13 ms
spin3/2
nuclear quadrupole moment
таърихи кашф1984
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)71%
2n (2-neutron emission)17%
3n (3-neutron emission)9.1%

20B

Адади массавӣ20
neutron number15
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin1
nuclear quadrupole moment
таърихи кашф2018
parity-

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

21B

Адади массавӣ21
neutron number16
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin3/2
nuclear quadrupole moment
таърихи кашф2018
parity-

decay modeintensity
2n (2-neutron emission)100%
Boron
Electron shell 005 Boron

таърих

кошифSir H. Davy, J.L. Gay-Lussac, L.J. Thénard
макони кашфEngland/France
таърихи кашф1808
РешашиносӣFrom Arabic and Persian words for borax.
pronunciationBO-ron (Англисӣ)

source

Abundance
Abundance in Earth's crust
natural abundance (Уқёнус)
natural abundance (human body)
0,00007 %
natural abundance (meteoroid)
0,00016 %
natural abundance (Офтоб)
0,0000002 %
Abundance in Universe
0,0000001 %

Nuclear Screening Constants

1s0.3205
2p2.5786
2s2.4238