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Element 6 - Carbon (C) sound

From carbo, or charcoal; prehistoric. Its natural forms--diamond, charcoal and graphite--carbon in its endless variety of compounds is an indispensable source of such varied everyday products as nylon and petrol, perfume and plastics, shoe polish, DDT and TNT.

Properties

Atomic Number: 6
Atomic Weight: 12.011
Electron Configuration (at ground state): 1s22s22p2
Oxidation States (Bold most stable): -4, +2, +4
Boiling Point (K): 5100
Melting Point (K): 3825
Density (at 300K -- g/cm3): 2.26
Atomic Volume (at 300K -- cm3/mol) 5.30
Number of stable isotopes: 2
Number of natural radioactive isotopes: 1
Mass Number (Bold naturally occurring) -- Half-Life -- Disintigration Type: 11 -- 20.40 minutes -- positron emission
14 -- 5730 years -- beta particle (electron) emission
Covalent Radius (Å): 0.77
Atomic Radius (Å): 0.91
First Ionization Potential (V): 11.260
Electronegativity (Pauling's): 2.55
Specific Heat Capacity (at 300K -- J g-1 K-1): 0.709
Heat of Vaporization (kJ/mol): -715
Electrical Conductivity (at 293K for polycrystalline material -- 106 (ohms)-1 cm-1): 0.07
Thermal Conductivity (at 300K -- W m-1 K-1): 80-230
Crystal Structure: Hexagonal
Acid-Base Properties: Slightly acidic