Boron (B)

 

Boron (B) 10.811 g/mol

Boron (B) 10.811 g/mol
Boron (B) 10.811 g/mol

Latin name: Borum

English name: Boron

Year discovered: 1808

Year discovered: 1808

Discovered by:

Joseph Louis Gay-Lussac

Louis Jacques Thénard

Humphry Davy

Cost per 100 grams: 0.37 USD


Electron shell:

K2 L3 M0 N0 O0 P0 Q0 R0

Electrons: 5

Protons: 5

Neutrons: 6

Atomic number: 5

Atomic weight (Relative atomic mass): 10.811 (g/mol)

Density: 2.34 (g/cm³)

Melting point:

2075.8°C   =   3768.44°F   =   2348.95K

Boiling point:

3926.8°C   =   7100.24°F   =   4199.95K

Phase: Solid

Valence electron: II

Group: III

Period: 2

Block: p – block

Electronegativity: 2.04 

Electron affinity: 26.7 kJ/mole 

Electrical conductivity: 0.0001 (S/m) 

Resistivity: 10000 (Ω · m)

Magnetic type: Diamagnetism

Crystal structure: Rhombohedral

Grid parameters: a=10.17; α=65.18 Å

Attitude: 0.576

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