francium

radon$\longleftarrow$ 87 $\longrightarrow$radium

Pronunciation

• (US) enPR: frăn'sēəm, IPA ^(key): /ˈfrænsi.əm/
• (UK) IPA ^(key): /ˈfransɪəm/ or /ˈfrɑːnsɪəm/

• Audio (UK)

  (file)

Noun

Singular francium

Plural none

1. (uncountable) Francium is a heavy, radioactive, metal element with an atomic number of 87.

   Francium is made from actinium or thorium.