Rhodium

Chaitra 26/06/2026 19:58:08 Updated 26/06/2026 19:58:08
Property Value
Atomic Number 45
Element Rhodium
Symbol Rh
Atomic Mass 102.91 u
Number of Neutrons 58 (most common isotope, Rhodium-103)
Number of Protons 45
Number of Electrons 45
Period 5
Group 9
Phase Solid
Radioactive No
Natural Yes
Metal Yes
Nonmetal No
Metalloid No
Type Transition Metal
Atomic Radius 173 pm
Electronegativity 2.28 (Pauling scale)
First Ionization Energy 7.459 eV
Density 12.41 g/cm³
Melting Point 1964 °C
Boiling Point 3695 °C
Number of Isotopes 1 stable (Rhodium-103)
Discoverer William Hyde Wollaston
Year 1803
Specific Heat 0.243 J/g·K
Number of Shells 5
Number of Valence Electrons 9
Tags: Tutorials Chemistry tutorial step by step learn how to guide examples
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