Possibly, though francium is too rare and its half-life too short for it to have any practical uses, there may have been a Francium Bomb tested in the Pacific.
Francium hasn't applications.
The element with atomic number 119 is a theoretical element and hasn't been observed. However, it does still have an IUPAC systematic placeholder name; which is Ununennium (Uue). Only one attempt has ever been made to make this element. That was in 1985, when Calcium-48 ions were bombarded at Einsteinium-254. It was a failure. If it were to be discovered, it would be the first element of period 8 and would probably fit in under Francium.
This rare metal has the lowest electronegativity on the periodic table. With an electronegativity number of 0.7 this element donates it's electron very easily to the higher electronegative nonmetals.
We are not sure because fermium is a lab made element and a pure metal sample has not yet been prepared. However it is a member of the actinide series.The alloy of fermium and ytterbium is shiny and silver.
almost none... ever. no predictions can be made from a single recording because earthquakes are too random
Nothing is made from francium.
The most powerful bomb ever made was the tsar bomb.
Presumably francium -- I don't know whether enough has ever been made to test. Among stable elements, cesium.
As francium is a chemical element, it is made up of protons, neutrons and electrons.
Francium has any use.
Francium hasn't applications.
Francium was discovered by Marguerite Perey in 1939.
Atom bomb dropped in Japan by the U.S. during WWII
Natural francium is the decay product of actinium-227. Francium can be also obtained by nuclear reactions.
The largest most powerful bomb detonated in human history is theTsar-Bomb or AN602. It was detonated by the Soviet Union and was worth 100 megatons of TNT. Only one was ever made. The explosion would have been much larger if the bomb wasn't attached to a parachute so the plane could get away on time. It was 10x bigger the both bomb dropped on Japan. It has never been used in war. The bomb weighed a total of 27 tons.
The Tsar Bomba; that was made by the Soviet Union (Russia)
The biggest was Little Boy (1946)