Words starting with actiniumser
Maybe these words will be useful:
- actinium — a radioactive element of the actinide series, occurring as a decay product of uranium. It is used as an alpha-particle source and in neutron production. Symbol: Ac; atomic no: 89; half-life of most stable isotope,227Ac: 21.6 years; relative density: 10.07; melting pt: 1051°C; boiling pt: 3200 ± 300°C
- actinium series — a radioactive decay series that starts with uranium-235 and ends with lead-207