What is FRANCIUM

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=-aeNFD-AaHE

What is FRANCIUM?Francium is a chemical element with symbol Fr and atomic number 87. It used to be known as eka-caesium. It is extremely radioactive; its mos...

What is FRANCIUM?, Francium, francium atom, science, chemistry, periodic table, chemical elements, atom, electron
#############################