Symbol designating the second of a series
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AnswerCrossword Clue
BETASymbol designating the second of a series.
actinonchemically inert, gaseous, short-lived isotope of radon that is a member of the actinium series. Symbol: An; at. no.: 86; at. wt.: 219
actinonschemically inert, gaseous, short-lived isotope of radon that is a member of the actinium series. Symbol: An; at. no.: 86; at. wt.: 219
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
secondsecond part or the second one of a series
penultimateLast but one in a series of things; second to the last