Bor

Bor (B)

hemijski element sa simbolom B i atomskim brojem 5
Atomic Number5
Atomic Weight10.81
Maseni broj11
Group13
Period2
Blockp
Proton5 p+
Neutron6 n0
Elektron5 e-
Animated Bohrov model atoma of B (Bor)

Physical Property

Atomski Radijus
Molarni volumen
covalent radius
Metallic Radius
Ionski radijus
Crystal Radius
Van der Waalsov radijus
gustoća
Atomic Radii Of The Elements: Bor0102030405060708090100110120130140150160170180190200pmAtomski RadijusCovalent RadiusMetallic RadiusVan der Waalsov radijus

Chemical Property

energija
proton affinity
electron affinity
ionization energy
ionization energy of B (Bor)
Toplota isparavanja
toplota topljenja
standard enthalpy of formation
Elektron
electron shell2, 3
Bohrov model atoma: B (Bor)
Valentni elektron3
Lewis structure: B (Bor)
electron configuration[He] 2s2 2p1
1s2 2s2 2p1
Enhanced Bohrov model atoma of B (Bor)
Orbital Diagram of B (Bor)
oksidacijsko stanje-5, -1, 0, 1, 2, 3
Elektronegativnost
2.04
Electrophilicity Index
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Black
appearanceblack-brown
Indeks prelamanja
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
typeInsulator
Specifična električna provodljivost
electrical resistivity
Superprovodljivost
Magnetizam
typediamagnetic
magnetic susceptibility (Mass)
-0,0000000087 m³/Kg
magnetic susceptibility (Molar)
-0,0000000000941 m³/mol
magnetic susceptibility (Volume)
-0,0000214
magnetic ordering
Kirijeva tačka
Néel temperature
struktura
Crystal StructureSimple Trigonal (TET)
lattice constant
Lattice Angles1.01334, 1.01334, 1.01334
mechanical property
Tvrdoća
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
Brzina zvuka
klasifikacija
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
Kvantni brojevi2P1/2
space group166 (R_3m)

Isotopes of Boron

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

6B

Maseni broj6
broj neutrona1
Relative Atomic Mass
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin2
nuclear quadrupole moment
datum otkrića
parity-

decay modeintensity
2p (2-proton emission)

7B

Maseni broj7
broj neutrona2
Relative Atomic Mass
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
570 ± 14 ys
spin3/2
nuclear quadrupole moment
datum otkrića1967
parity-

decay modeintensity
p (proton emission)100%

8B

Maseni broj8
broj neutrona3
Relative Atomic Mass
g-factor
0,51775 ± 0,00015
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
771,9 ± 0,9 ms
spin2
nuclear quadrupole moment
0,0643 ± 0,0014
datum otkrića1950
parity+

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

9B

Maseni broj9
broj neutrona4
Relative Atomic Mass
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
800 ± 300 zs
spin3/2
nuclear quadrupole moment
datum otkrića1940
parity-

decay modeintensity
p (proton emission)100%

10B

Maseni broj10
broj neutrona5
Relative Atomic Mass
g-factor
0,60015453333333 ± 0,00000026666666666667
natural abundance
19,65 ± 0,44
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin3
nuclear quadrupole moment
0,0846 ± 0,0002
datum otkrića1920
parity+

11B

Maseni broj11
broj neutrona6
Relative Atomic Mass
g-factor
1,792252 ± 0,00000066666666666667
natural abundance
80,35 ± 0,44
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0,04059 ± 0,0001
datum otkrića1920
parity-

12B

Maseni broj12
broj neutrona7
Relative Atomic Mass
g-factor
1,003 ± 0,001
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
20,2 ± 0,02 ms
spin1
nuclear quadrupole moment
0,0132 ± 0,0003
datum otkrića1935
parity+

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

13B

Maseni broj13
broj neutrona8
Relative Atomic Mass
g-factor
2,1185333333333 ± 0,00033333333333333
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
17,16 ± 0,18 ms
spin3/2
nuclear quadrupole moment
0,0365 ± 0,0008
datum otkrića1956
parity-

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

14B

Maseni broj14
broj neutrona9
Relative Atomic Mass
g-factor
0,5925 ± 0,0025
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
12,36 ± 0,29 ms
spin2
nuclear quadrupole moment
0,0297 ± 0,0008
datum otkrića1966
parity-

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

15B

Maseni broj15
broj neutrona10
Relative Atomic Mass
g-factor
1,7726666666667 ± 0,01
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
10,18 ± 0,35 ms
spin3/2
nuclear quadrupole moment
0,0379 ± 0,0011
datum otkrića1966
parity-

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

16B

Maseni broj16
broj neutrona11
Relative Atomic Mass
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
datum otkrića2000
parity-

decay modeintensity
n (neutron emission)

17B

Maseni broj17
broj neutrona12
Relative Atomic Mass
g-factor
1,7 ± 0,013333333333333
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,08 ± 0,05 ms
spin3/2
nuclear quadrupole moment
0,0385 ± 0,0015
datum otkrića1973
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

Maseni broj18
broj neutrona13
Relative Atomic Mass
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin2
nuclear quadrupole moment
datum otkrića2010
parity-

decay modeintensity
n (neutron emission)100%

19B

Maseni broj19
broj neutrona14
Relative Atomic Mass
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,92 ± 0,13 ms
spin3/2
nuclear quadrupole moment
datum otkrića1984
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

Maseni broj20
broj neutrona15
Relative Atomic Mass
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1
nuclear quadrupole moment
datum otkrića2018
parity-

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

21B

Maseni broj21
broj neutrona16
Relative Atomic Mass
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3/2
nuclear quadrupole moment
datum otkrića2018
parity-

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

historija

otkrivač ili izumiteljSir H. Davy, J.L. Gay-Lussac, L.J. Thénard
mjesto otkrićaEngland/France
datum otkrića1808
EtimologijaFrom Arabic and Persian words for borax.
pronunciationBO-ron (engleski)

izvor

Abundance
Abundance in Earth's crust
natural abundance (okean)
natural abundance (ljudsko tijelo)
0,00007 %
natural abundance (Meteoroidi)
0,00016 %
natural abundance (Sunce)
0,0000002 %
Abundance in Universe
0,0000001 %

Nuclear Screening Constants

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