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What are the least abundant elements?
The least abundant elements in the Earth's crust are typically the rare earth elements such as thulium, lutetium, and hafnium. In the universe, elements such as francium and astatine are considered very rare.
Is francium not abundant because of the damage it causes?
Francium is very unstable and easily disappear.
Where is the most abundant location for the element francium?
Natural francium exist in uranium and thorium ores.
What is francium's most abundant isotope?
Francium has no stable isotopes. That means it doesn't really have a "most abundant" isotope; they're all pretty much nonexistent. There are trace amounts of 223Fr in uranium minerals, because it's a decay product of 227Ac (which is itself a decay product in the decay chain of uranium).
Is francium found in earth?
It is estimated that only approx. 30 g francium exist on the Earth.
What is the least abundant of the eight rock-forming elements that make up most of the continental crust?
The least abundant of the eight rock-forming elements in the continental crust is potassium, with an average abundance of around 2.6%. The other rock-forming elements are oxygen, silicon, aluminum, iron, calcium, sodium, and magnesium.
Is francium in earth?
Yes. Earth's crust is estimated to contain about 30 grams of Francium at any given time.
Where can you find francium other than on earth?
The existence of francium in cosmos was not proved.
What are two interesting properties of francium?
- francium is extremely radioactive- the total quantity of francium on the Earth is approx. 30 g- the chemical and physical properties of francium are only estimated, not measured
How much francium is in the whole world?
It is estimated that the Earth crust contain approx. 30 g francium.
What is an unusual fact about francium?
Natural francium is very scarce - approx. 30 g in the Earth crust.
Where can francium can be found on earth and in what form?
Francium exist in uranium and thorium ores; the chemical form is not known.
