
Grade 7Inorganic Chemistry
I want to know the formula of Zanthroprotic Acid.I even wonder why only the Atomic No.of certain elements are present in the Periodic table and not thier MassNo.
I want to know the formula of Zanthroprotic Acid.I even wonder why only the Atomic No.of certain elements are present in the Periodic table and not thier MassNo.




