Sodium is an element. It is made only of sodium atoms.
The chemical element "sodium" is an alkali metal.
The chemical composition remain unchanged.
Physical properties can be observed without changing the chemical composition of a substance. Chemical properties can only be observed by changing the chemical composition of the substance. In a physical change, the chemical composition of the substance does not change. In a chemical change, the chemical composition of the substance changes.
Yes, the composition of the rocks is as a result of the distinct chemical composition.
i think is chemical composition its not chemical composition, it's how they were formed
i think is chemical composition its not chemical composition, it's how they were formed
The chemical composition of water remain unchanged.
A liquid is a compound or a mixture; the chemical composition is representative for this liquid.
A chemical change involve a change of composition.
group 1
154 pm
Yes