All of the 1st group metals (Li, Na, K, Rb, Cs, Fr) because they react with the air and many other things.
cooking oil and gasoline
Group 1 metals are stored under a layer of oil. This prevents them from coming into contact with the oxygen in the air. Thus the violent reaction of group 1 metals and oxygen is prevented and the metals can be stored safely under oil.
group 1 metals are stored under oil because they are so reactive, they will react with the oxygen and water in the air if you leave them unprotected, keeping them under oil prevents this from happening, as water and oxygen can't pass through the oil and get to the metal. . .hope this helped pall =].
Alkali metals are typically stored under oil or inert gases to prevent them from reacting with moisture and oxygen in the air. They are highly reactive and can react violently with water and air, so special precautions are necessary to ensure they are stored safely.
They metals are stored in oil to minimize the reactivity with air. When alkali metals react with air, they quickly tarnish after begin cut, they burn easily.
cooking oil and gasoline
Reactive metals such as sodium and potassium are stored in oil to prevent them from reacting with moisture or oxygen in the air. When exposed to air, these metals can react vigorously and potentially catch fire. Storing them in oil creates a barrier that helps to prevent these reactions.
Group 1 metals are stored under a layer of oil. This prevents them from coming into contact with the oxygen in the air. Thus the violent reaction of group 1 metals and oxygen is prevented and the metals can be stored safely under oil.
They are so reactive they even react with the moisture in the air. Storing under oil prevents this.
group 1 metals are stored under oil because they are so reactive, they will react with the oxygen and water in the air if you leave them unprotected, keeping them under oil prevents this from happening, as water and oxygen can't pass through the oil and get to the metal. . .hope this helped pall =].
To avoid any reactions with oxygen, water, carbon dioxide.
Alkali metals are typically stored under oil or inert gases to prevent them from reacting with moisture and oxygen in the air. They are highly reactive and can react violently with water and air, so special precautions are necessary to ensure they are stored safely.
They burn in atmospheric air, such metals are stored in oil under dry nitrogen gas.
They metals are stored in oil to minimize the reactivity with air. When alkali metals react with air, they quickly tarnish after begin cut, they burn easily.
Potassium, sodium, and lithium are softer and more reactive than other metals. They are typically stored in oil or kerosene to prevent them from reacting with moisture in the air.
They are submerged in kerosene or other oil solutions to prevent them from reacting with the water vapor in the air and combusting.
They are so reactive they even react with the moisture in the air. Storing under oil prevents this.