Cerium

Lanthanide · atomic number 58

58140.1161CeCeriumSolidLanthanide

Cerium is a chemical element with symbol Ce and atomic number 58. It is a soft, silvery, ductile metal which easily oxidizes in air. Cerium was named after the dwarf planet Ceres (itself named after the Roman goddess of agriculture).

Properties of Cerium

Element category	Lanthanide
Atomic number	58
Atomic mass	140.1161 u
Phase at STP	Solid
Group	3
Period	6
Block	f
Electron configuration	[Xe] 4f1 5d1 6s2
Electrons per shell	2, 8, 18, 19, 9, 2
Electronegativity (Pauling)	1.12
Melting point	1068 K (795 °C)
Boiling point	3716 K (3443 °C)
Density	6.77 g/cm3
Discovered by	Martin Heinrich Klaproth

← Lanthanum · Periodic table · Praseodymium → Pr

About the lanthanide group

The rare-earth “inner transition” metals that give strong permanent magnets, screen phosphors and catalyst polish.

Data: Periodic-Table-JSON (CC BY-SA 3.0) · stored statically on our server. https://en.wikipedia.org/wiki/Cerium

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15 elements: The rare-earth “inner transition” metals that give strong permanent magnets, screen phosphors and catalyst polish.

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