Terakoya by CCN
Back to the Room of the Elements
63
Room of the Elements · No. 63

Europium (Eu): what kind of element is it?

日本語

In short

Europium is element number 63, with the symbol Eu. Its name comes from Europe.
Atomic number 63152.0
EuEuropium (yuuropiumu)
Symbol
Eu
Atomic weight
152.0
Place in the table
Period 6 · Lanthanoids

Atomic weight from the Chemical Society of Japan, “Table of Standard Atomic Weights with Four Significant Figures (2026)”.

A continent’s name

Europium was discovered in 1901 and named after Europe. It was one of the first elements discovered in the 20th century.

Where it sits on the table

The fifteen elements from lanthanum to lutetium are called the lanthanoids. On the Room of the Elements table they are in the upper of the two rows set apart at the bottom.

On the Room of the Elements table, it sits directly above americium (95). Europe sits above America.

Think about it

There is no single right answer. Talking it over with someone at home is a good way to learn.

Did you know? — Directly below europium (Europe) in the lanthanoids is americium (America) in the actinoids.
Next steps
About this page
Symbol and atomic weight: Chemical Society of Japan, “Table of Standard Atomic Weights (2026)” and “Table of Atomic Weights with Four Significant Figures (2026)”. Origin of the symbol and year of discovery: Sugiyama, “The Origins of Element Symbols,” Kagaku to Kyōiku 43(12), 1995 (Chemical Society of Japan). All sources are in Japanese.
Written by CCN CO., LTD.
PreviousNext