francium lietuviškai

Play francium tarimas /ˈfransɪəm/

francium vertimas

  1. Francis

Paaiškinimas anglų kalba

  • a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
  • Francium. A radioactive alkali metal with the atomic symbol Fr, atomic number 87, and atomic weight 223. The mass numbers of other known isotopes are 204-213, 217-222, and 224. Its valence is +1.
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