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Rubidium.

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Q: What is a period 5 element that reacts explosively with water?
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Related questions

What element reacts explosively when it comes in contact with water?

Sodium will, and some others will too.


Why have many high school's banned the use of potassium?

It reacts explosively with water


When cesium metal reacts explosively with water does it go through a physical change or a chemical change?

chemical


Is sodium azide reactive?

Yes. Readily reacts with water. Decomposes liberating N2 explosively when heated.


Why is hydrogen inert at room temperature?

Hydrogen is not inert it reacts explosively with Oxygen to create water H2O


What metal reacts with water to cause an explosion?

there are some alkali metals. It can be sodium or potassium.


Rubidium reacts violently with which element?

water


What element reacts to cold water?

Sodium


Which element reacts more rapidly in water lithium or potassium?

Potassium (K) reacts most rapidly with water.


What element reacts badly with water?

Some metals in the table do not react with water


How is the way the element sodium reacts with water different from the way the compound sodium chloride reacts with water?

Sodium reacts violently with water, while sodium chloride (or table salt) dissolves in water.


What is the heaviest known element that is explosive?

Most explosives are not elements, they are compounds, however several elements will react explosively under some conditions. Caesium (132 amu) reacts explosively with water, as would Francium (but Francium is so rare that no one has isolated enough to see or weigh) Several heavy radioactive substances can be made to undergo fission, especially plutonium-239)