(TXT) 5 B Boron (plaintext)
H He
Li Be [B ]C N O F Ne
Na Mg Al Si P S Cl Ar
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr
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| 5 ____ |
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| Boron |
| 10.81 u |
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(TXT) Wiki Article: Boron
Electron Configuration: [He]2s2 2p1
Electronegativity: 2.04
Atomic Radius: 192 pm
Ionization Energy: 8.298 eV
Electron Affinity: 0.277 eV
Oxidation States: 3
Standard State: Solid
Melting Point: 2348 K
Boiling Point: 4273 K
Density: 2.37 g/cm3
(DIR) Family: Metalloid
Year Discovered: 1808
Number of Neutrons: 6
Number of Protons: 5
Number of Electrons: 5
Number of Valence: 3
Valency: 3
Group: 13
Period: 2
(DIR) Shell: p-shell
Specific Heat: 1.026 J/g K
Radioactive: 0
Occurrence: Natural
(DIR) Source: Cosmic ray collision