Question

what is the oxidation state of Eu

Answer 1

Europium is a chemical element with symbol Eu and atomic number 63. It was isolated in 1901 and is named after the continent of Europe.[5] It is a moderately hard, silvery metalwhich readily oxidizes in air and water. Being a typical member of the lanthanide series, europium usually assumes the oxidation state+3, but the oxidation state +2 is also common. All europium compounds with oxidation state +2 are slightly reducing. Europium has no significant biological role and is relatively non-toxic compared to other heavy metals. Most applications of europium exploit the phosphorescence of europium compounds. Europium is one of the least abundant elements in the universe; only about 5×10−8% of all matter in the universe is europium

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Answer 2

Answer:

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