Arielle Pugh, Hour 6
· • No smell
· • The melting point of francium is 27 °C
· • The boiling point is 677 °C
· • Francium is the heaviest known member of the alkali metals series
· • It has the highest equivalent weight of any element
· • Electronegativity (according to Pauling) is 0.7
· • Isotopes: 33
· • Reactive metal
· • Stored under kerosone to protect it from oxygen and water vapor reaction.
· • Reacts quickly with oxygen.
Francium is a very unstable property. It would most likely have a violent reaction with any other element during a chemical property, like an explosion, based on the reaction(s) its sister elements have had.
3s2 3p6 3d10
4s2 4p6 4d10 4f14
5s2 5p6 5d10
Atomic Number: 87
Number of Protons: 87
Number of Electrons: 87
Discovered by Marguerite Perey in 1939
Francium is the second rarest element in the Earth's crust next to Astatine.
It is a heavy, unstable, radioactive metal.
Decays after 22 minutes and turns into Astatine, Radon, or Radium.
No stable isotopes.