a radioactive decay series that starts with uranium-235 and ends with lead-207
actinium series in American English
natural radioactive decay series starting with uranium-235 and ending with lead-207
actinium series in American English
noun
Chemistry
the radioactive series that starts with uranium 235 and ends with a stable isotope of lead of mass number 207
Word origin
[1955–60]This word is first recorded in the period 1955–60. Other words that entered Englishat around the same time include: backgrounder, cassette, new wave, opioid, software