0
Why did it take 80 years longer to discover francium after all the other alkali metals?
Wiki User
∙ 14y ago
Francium is a natural chemical element but the total quantity of francium in the earth crust is only approx. 30 g. Francium has ca. 40 isotopes and isomers but only two are natural: 221Fr (in the neptunium decay chain series) and 223Fr (in the actinium decay chain series). Artificially preparation of francium isotopes is also extremely difficult and expensive; and the chemistry and physics of isotopes was developed essentially after 1940. Supplementary, the most stable isotope of francium has a half life of only 21,8 minutes and is strongly radioactive; the half lives of the artificially prepared isotopes are more smaller.
This is sufficient reason to explain why francium was later discovered and why even today is only slightly studied.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
When was francium discovered and by whom?
Radon (element #86) was discovered in 1900. Francium (#87) was discovered in 1939. Francium is the second rarest naturally occurring element. It is also one of the most reactive elements known to man and has a high isotopic instability, with a half life of about 22 minutes. Francium is a part of the Alkali metals group, which are all quite reactive with water and air, Francium being the most reactive. Francium will react explosively upon contact with air, and you wouldn't want to be there if it came into contact with water.
Why do Olympian bite The gold medals?
Take the BITE out of the metal! A Florida bill is proposing that the IRS will no longer tax Olympians for winning a metal! Currently Olympians gold metals are taxed $8,750. silver metals are taxed $5,250, and Bronze $3,502. Even though according to CNN reports, the actual value of the metals are $650. KEdwards
What did the babylonians discover?
The Babylonians used copper for a lot of things. They mixed certain metals and found they discovered Bronze. It is a harder metal that could be used for weapons, protective helmets and chest plates.
How do you define an element?
Metal,Non-metals,Metalloids,Transition Metals
Where are non metals found in nature?
There are many non metals that are found in nature. These non metals include all gasses like oxygen and hydrogen.
What is francium and the alkali metals?
Francium is a member of the alkali metals group (group 1 of the periodic table).
All alkali metals except francium had been disconerd by 1860 why did it take scientists another 80 years to find francium?
Francium is the second rarest element on earth so that's probably why it took a little longer to discover.
What family is francium found in?
Francium is a member of the alkali metals family.
Francium alkali family?
Yes, francium is a member of the alkali metals family (group 1).
Are cesium potassium and francium all alkali metals?
Yes, all are alkali metals.
What block is francium in?
Francium is in the group 1 of the periodic table (alkali metals).
Why did it take 80 years longer to descover francium the all the other alkali metals?
The total amount of the francium in the Earth crust is approx. 30 grams.
Are alkali metals in groupe 1 elements?
Alkali metals are the metals in family/group I.Lithium, sodium, potassium, Rubidium, Cesium, Francium are Alkali metals.
Where are the alkali metals?
The alkali metals are the metals found in group I, includinng lithium, sodium, potassium, rubidium, caesium and francium.
What is the group number for francium?
Francium is in the group 1 (alkali metals) of the periodic table.
What period and group is francium in?
Francium is amrmber of the alkali metal familiy (group 1 in the Periodic Table of Mendeleev): Li, Na, K, Rb, Cs, Fr.
Francium reacting with water?
As other alkali metals francium can react with water; but unfortunately we don't have francium for this experiment !
