The electronic configuration of Eu 3+ ion is [Xe]4f6.
Europium is not a naturally occurring element. Europium is found in the majority of minerals, with monazite and bastnasite serving as important sources. It is a soft white-silvery metal. The enrichment or depletion of europium in minerals related to other rare earth elements is termed as europium anomaly.
Symbol – Eu
Atomic number and atomic mass – 63 and 151.964 amu
Group – Lanthanides
Period and block – 6th period and f block
Electronic configuration – [Xe] 4f76s2