Your question makes no sense.
If stripped down, your question looks like this: "Is metal change?" The answer to this question is obviously "no, but some change is metal, such as pennies or nickels"
it will float, with it being a soft metal, try it for yourself
Two elements that can float on water are lithium and potassium. These elements have a lower density than water, which allows them to float on its surface.
Buoyancy is a physical change, not a chemical change. It results from the relationship between an object's density and the density of the fluid it is placed in, causing the object to either float or sink.
Making a root beer float involves a physical change because no new substances are created during the process. The ice cream and root beer simply mix together to create a new combination, but their chemical composition remains the same.
No, lithium is less dense than water, so it will float on the surface of water.
it will float, with it being a soft metal, try it for yourself
Lithium, sodium, and potassium all float on water. Sodium and lithium both react with the water to give off hydrogen gas - they look a bit like fizzies when they do it. They can give off enough heat to light the gas, so they burn as they float around if there is enough oxygen to support a flame. I imagine potassium would act the same way, but I have never seen it personally. Beryllium, the lightest element in the alkaline earth group, is more dense that water, and would not float.
Lithium will react violently with water. Do not put it in water
Two elements that can float on water are lithium and potassium. These elements have a lower density than water, which allows them to float on its surface.
Buoyancy is a physical change, not a chemical change. It results from the relationship between an object's density and the density of the fluid it is placed in, causing the object to either float or sink.
Making a root beer float involves a physical change because no new substances are created during the process. The ice cream and root beer simply mix together to create a new combination, but their chemical composition remains the same.
The alkaline metals react with water, and Lithium and Sodium float on the water whilst reacting.
Floating is not a change of any kind. It is a physical property, dependent on its density.
Hydrogen
No, lithium is less dense than water, so it will float on the surface of water.
Because Lithium is less dense than water
When lithium reacts with water, it produces lithium hydroxide and hydrogen gas. The lithium metal may also appear to move around or float on top of the water due to its low density. This reaction is exothermic, meaning it releases heat.