Carbon

Koushik 26/06/2026 19:58:08 Updated 26/06/2026 19:58:08
Property Value
Atomic Number 6
Element Carbon
Symbol C
Atomic Mass 12.011 u
Number of Neutrons 6 (most common isotope, Carbon-12)
Number of Protons 6
Number of Electrons 6
Period 2
Group 14
Phase Solid
Radioactive No
Natural Yes
Metal No
Nonmetal Yes
Metalloid No
Type Polyatomic Nonmetal
Atomic Radius 67 pm
Electronegativity 2.55 (Pauling scale)
First Ionization Energy 11.260 eV
Density 2.267 g/cm³ (graphite)
Melting Point ~3550 °C (sublimes)
Boiling Point ~4827 °C
Number of Isotopes 15 (Carbon-12 and Carbon-13 are stable)
Discoverer Known since ancient times
Year Unknown
Specific Heat 0.709 J/g·K
Number of Shells 2
Number of Valence Electrons 4
Tags: Tutorials Chemistry tutorial step by step learn how to guide examples
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