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Why Francium is not in Mendeleev Periodic Table?
Francium was discovered in 1939, several decades after Mendeleev created his periodic table in 1869. At the time Mendeleev developed his table, francium had not yet been identified, and elements were organized based on their known properties and atomic weights. Additionally, francium is a highly radioactive and unstable element, which made it difficult to study and include in early classifications of elements.
Is francium combustible?
Not known today but probably francium don't burn.
What is a use of francium oxide and What is a compound of francium Is a compound francium oxide?
Francium has not applications and the oxide cannot be prepared.
Is francium a metalliod?
Francium is a metal.
How was francium named francium?
Francium was named after France, the country it was dicovered in.
What are chemical properties of francium?
The chemistry of francium is not known; francium has properties similar to caesium.
Why is the density of francium unknown?
We haven't sufficient francium for a measurement; also francium is autovaporized.
What is francium made out of?
As francium is a chemical element, it is made up of protons, neutrons and electrons.
Is francium synthetic and radioactive?
Francium is a radioacive chemical element; francium is natural but also may be prepared in laboratory.
How expensive is francium?
Francium is not a commercial product.
Where can you bye francium?
Francium is not a commercial product.
What can it be made from francium?
Francium has any use.
