Electron Configuration: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 7s1
Name |
Francium |
Symbol |
Fr |
Atomic Number |
87 |
Atomic Mass |
223 amu |
Number of Protons |
87 |
Number of Neutrons |
136 |
Number of Electrons |
87 |
Melting Point |
27 degrees Celcius |
Boiling Point |
676.8 degrees Celcius |
Density @ 20C |
1.873 g/cm3 |
Normal Phase |
Solid |
Family |
Alkali Metals |
Period |
7 |
Origin of Name |
After the country France |
Date & Place of Discovery |
In 1839 at the Curie Institute in Paris France |
Interesting Facts |
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Common Uses |
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