Answer: cerium
AnswerCrossword Clue
CERIUMRare-earth element
CERIUMElement of rare-earth group.
CERIUMDuctile element.
CERIUMOne of the lanthanides
CERIUMMetal that may ignite if scratched
CERIUMRadioactive element
CERIUMElement Ce
ceriumsteel-gray, ductile metallic element of the rare-earth group found only in combination. Symbol: Ce; at. wt.: 140.12; at. no.: 58
ceriuma malleable ductile steel-grey element of the lanthanide series of metals, used in lighter flints and as a reducing agent in metallurgy. Symbol: Ce; atomic no: 58; atomic wt: 140.115; valency: 3 or 4; relative density: 6.770; melting pt: 798°C; boiling pt: 3443°C