Chemical element with symbol Fr and atomic number 87.
Sinònims
Examples for "fr"
Examples for "fr"
1This would give the miner who began his deposit of 22 fr.
2I guess Noel-Pardon would go begging, and we might burn the fr.
3Since the investment of the capital, they have taken their 1fr.
4The phenotype of human ICOS deficiency, which differs in key aspects fr …
5To lose hours staring at them, check out his Astrophoto.fr website.
1A similar sample of francium would hang on for just twenty minutes.
2Funnily enough, astatine is at the same time far more robust than francium.
3Because many radioactive elements around uranium happen to decay into francium as they disintegrate.
4Okay, sorry for not getting straight A's in francium class.
5At the same time, francium shuttles atoms away from astatine, causing astatine to remain rare.