Francium has one valence electron.
4
One(1)
6
Francium has one valence electron, its atomic no is 87 and it belong to Ist group of periodic table.
Francium has only one valence electrons.
The valence of francium is +1.
Francium has 87 electrons; one is the valence electron.
Boron has 3 valence electrons.
valence electrons
one
Valence electrons. They exist in the atom's valence shell.
Valence electons