Atom and molecule
Assignment questions of chapter atom and molecule
1. State the law of conservation of mass.
2. Giving an example, illustrate the law of constant proportions.
3. Name the smallest unit of matter. How big such units are?
4. What are isotopes?
5. What are Berzelius atomic symbols?
6. State the Berzelius scheme of writing atomic symbols.
7. What is the definition of an atomic symbol?
8. Write the atomic symbols for the following elements:
Nitrogen, Potassium, Copper, Calcium, Iron, Calcium, Chromium.
9. What is the significance of an atomic symbol?
10. What is the molecular mass of a substance? How is it calculated? What is the unit of molecular mass?
11. Define the term 'mole'.
Assignment questions of chapter atom and molecule
1. State the law of conservation of mass.
2. Giving an example, illustrate the law of constant proportions.
3. Name the smallest unit of matter. How big such units are?
4. What are isotopes?
5. What are Berzelius atomic symbols?
6. State the Berzelius scheme of writing atomic symbols.
7. What is the definition of an atomic symbol?
8. Write the atomic symbols for the following elements:
Nitrogen, Potassium, Copper, Calcium, Iron, Calcium, Chromium.
9. What is the significance of an atomic symbol?
10. What is the molecular mass of a substance? How is it calculated? What is the unit of molecular mass?
11. Define the term 'mole'.
