Question

1. State the main postulates of John Dalton’s atomic theory. 2. What are polyatomic ions ? Give two examples. 3. State the following i) Law of conservation of mass. ii) Law of constant proportion 4. What is the mass of : i) 1 mol of N atoms. ii) 4 mol of Al atoms. 5. What is meant by the term atomicity ? State the atomicity of i) Phosphorous ii) Sulphur​

Answer 1

Answer:

sorry I don't know answer .

Answer 2

Explanation:

postulates of John Dalton’s atomic theory. 2. What are polyatomic ions ? Give two examples. 3. State the following i) Law of conservation of mass. ii) Law of constant proportion 4. What is the mass of : i) 1 mol of N atoms. ii) 4 mol of Al atoms. 5. What is meant by the term atomicity ? State the atomicity of i) Phosphorous ii) Sulphur