what is francium? what is its speciality?
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Francium is a chemical element with symbol Fr and atomic number 87. It used to be known as eka-caesium and actinium K. It is the second-least electronegative element, behind only caesium, and is the second rarest naturally occurring element. Wikipedia
Symbol: Fr
Electron configuration: Rn 7s1
Atomic number: 87
Symbol: Fr
Electron configuration: Rn 7s1
Atomic number: 87
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francium is a alkali metal. its speciality is that it is radioactive in nature.
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