Francium

and electrons are not equal, this creats an unstable nucleous.) __** Sources **__ >
 * __ Francium __**
 * Element- Francium
 * Named for the country of France
 * Discovered by Marguerite Perey of the Curie Institute in Paris.
 * Discovered in 1939
 * Symbol- Fr
 * Atomic number- 87
 * Atomic mass- 223 amu
 * Source of symbol- First two letters in the name of the element
 * Number of protons- 87
 * Number of neutrons- 136
 * Number of electrons- 87
 * It is found naturally in uranium minerals.
 * It's in the state of a solid
 * Melting point: 27 degrees C
 * Boiling point: 677 degrees C
 * Density: 1870 kg/m3
 * It's abundunce in the Earth's crust is less than one ounce at any time
 * Because of how short lived and radioactive Francium is there aren’t any known uses for it. (on average it only lasts for 21-22 minutes)
 * __ Interesting facts [[image:francium.jpg width="205" height="212" align="right"]] __**
 * Heaviest known member of all the alkali metal series.
 * Does not have any stable isotopes
 * Most unstable of the first 103 elements of the periodic table
 * Heaviest simple atom
 * Believed to resemble cesium
 * Extremely rare
 * Radioactive (An element is radioactiv when the amount of protons
 * Radioactive (An element is radioactiv when the amount of protons
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