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Caesium react with water.
The Alkali metals (namely, Lithium, sodium, Potassium, Rubidium, Caesium and Francium in that order).
If consumed rubidium may be poisonous, but other wise it isn't.
Because Rubidium is a very reactive metal as it is in Group 1, the reaction time for it will be very quick indeed. Scientists think that it can be half the quickness of the speed of lightening.
Alkali metals and earth alkali metals do react strongly with water.(Lithium, ..., Caesium) (Beryllium, ..., Barium)
Yes, it is true.
Caesium is the 5th element in group I of the periodic table. It is an alkali metal, and they become more reactive as you go down the group from lithium to sodium to potassium etc. So we would expect that caesium is highly reactive, even more reactive than rubidium.
Caesium react with water.
No, rubidium and caesium can also sink in water
Rubidium, caesium and francium. Potassium will generate enough heat to ignite the hydrogen produced in the reaction but the reaction is not really explosive.
Rubidium oxide react with water.
Rubidium and caesium
To ensure purity and safety, Rubidium (Rb) must be kept in a dry mineral oil or in a vacuum. It needs to be stored in this way because it is highly reactive with air and water.
Very active metals which are on top of the electro-chemical series like sodium can react with water to release hydrogen.
if by family you mean section then i think that it is alkali metals these react quite a lot when dropped in to water it goes with lithium/potasium/rubidium/Caesium/francium hope that helped
You could use potassium, rubidium or caesium. However, there is no practical reason why you would do this. You'd have to do it in the melt, which would be hazardous, as all these metals react with water.
Hydrogen.