1. Neutrons have almost exactly the same mass as

2. James Dalton proved that the true nature of the atom could best be described as resembling "plum pudding."

3. Which statement best describes an isotope of an element?

4. What is the name of the scientist

5. What is the lightest subatomic particle

6. The law of conservation of mass states that

7. The Ratio by mass of elements Hydrogen and oxygen in water is

8. How many atoms ae there in a molecule of water ?

9. The cation present in aluminium hydroxide is that of

10. The number of ions in a molecule of aluminium oxide is