Rh

Rhodium · element 45

Transition Metal · Solid at room temperature

Rhodium is a chemical element with symbol Rh and atomic number 45. It is a rare, silvery-white, hard, and chemically inert transition metal. It is a member of the platinum group.

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Pure Rhodium Bead, 1 gram. Original size in cm: 0.5
Pure Rhodium Bead, 1 gram. Original size in cm: 0.5 - Hi-Res Images ofChemical Elements, CC BY 3.0 <https://creativecommons.org/licenses/by/3.0>, via Wikimedia Commons, source: https://images-of-elements.com/rhodium.php

Key facts

Atomic mass
102.905502 u
how heavy one atom is
Phase (room temp.)
Solid
Density
12.41 g/cm³
how tightly packed it is
Melting point
2237 K (1964 °C)
when solid turns to liquid
Boiling point
3968 K (3695 °C)
when liquid turns to gas
Period
5
its row in the periodic table
Group
9
its column in the periodic table
Block
D-block
the neighbourhood it lives in
Electronegativity
2.28
how strongly it pulls electrons
Electron configuration
[Kr] 4d8 5s1
where its electrons live
Shells
2 · 8 · 18 · 16 · 1
electrons in each layer, inside to out
Discovered by
William Hyde Wollaston
who found it
Appearance
silvery white metallic
what it looks like

Source: Wikipedia

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