The negatively charged ions are called
Atoms
Molecules
Anions
Cations
A mixture of sand and water can be separated by
The ratio of molecular mass of a substance to that of an atom of carbon is known as the _________of the substance.
Volume
Relative molecular mass
Density
Total mass
Neon and argon are
Metallic elements
Non-metallic elements
Metalloids
Noble gases
Separation of soluble solid constituent of a mixture from its liquid constituent by evaporation of the liquid component followed by the recondensation of the vapour obtained is the basic principle of __________-.
