Question

Which is the element with atomic no. 58? Write about it.

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Answer 1

Cerium is a soft, ductile, silvery-white metallic chemical element with symbol Ce and atomic number 58. Cerium tarnishes when exposed to air, and it is soft enough to be cut with a knife. Cerium is the second element in the lanthanide series, and while it often shows the +3 state characteristic of the series, it also exceptionally has a stable +4 state that does not oxidize water. It is also traditionally considered to be one of the rare earth elements. Cerium has no biological role, and is not very toxic.