Gold

Chaitra 26/06/2026 19:58:08 Updated 26/06/2026 19:58:08
Property Value
Atomic Number 79
Element Gold
Symbol Au
Atomic Mass 196.967 u
Number of Neutrons 118 (most common isotope, Gold-197)
Number of Protons 79
Number of Electrons 79
Period 6
Group 11
Phase Solid
Radioactive No
Natural Yes
Metal Yes
Nonmetal No
Metalloid No
Type Transition Metal
Atomic Radius 174 pm
Electronegativity 2.54 (Pauling scale)
First Ionization Energy 9.226 eV
Density 19.32 g/cm³
Melting Point 1064.18 °C
Boiling Point 2856 °C
Number of Isotopes 1 stable (Gold-197)
Discoverer Known since ancient times
Year Unknown
Specific Heat 0.129 J/g·K
Number of Shells 6
Number of Valence Electrons 11
Tags: Tutorials Chemistry tutorial step by step learn how to guide examples
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