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the number of Neutrons in the nucleus
the number of Nucleons in the nucleus
the number of Protons in its nucleus
the number of Electrons orbiting around the nucleus
The chemical formula of the laughing gas is
The chemical name of baking soda is
The chemical name of rat poison is
The chemical name of table salt is
The chemical substance present in bones and teeth is :
The chemical that is used to ripen mangoes is
The chemical used in embalming biological materials is
The chief constituent of natural gas is:
The chief raw material used for manufacturing Rayon is:
The chief source for the production of nitrogeneous fertilizers is: