Question

Give reason-

Europium(II) is more stable trhan Cerium (II)

Answer 1

Hi there,

Yes, Europium is more Stable than Cesium.

# Explanation

Because of the Oxidation state difference of both compounds. Europium has +2 oxidation state and Cesium has +3( also +4) oxidation state. Another point is that it has 4f half-filled subshells which Provide more stability toward Europium. Most of the Lanthanides are stable having +3 oxidation state.

Hope it helps you.