The Structure of Atom

Chemistry Board Question
Chapter Five
The Structure of Atom
Short Question
1. i) What do you mean by isotope? (CtgB-05) 1
 ii) What do you mean by an isotope? Explain with example. (DB-03, 05, CB-04, 00, RB-03, CB-05 JB-08) 2
 iii) Write down the names of different isotopes of Hydrogen. (RB-05) 1
2. i) What is mass number? Write the number of protons, electrons and neutrons in the ion O2 (DB-02) 2
 ii) What is the significance of O2 (SB-03) 2
 iii) What is significance of (CtgB-05) 2
3. Write down the postulates / assumtions of Bohr's atom model. (CB-04) 2
4. What is electronic configuration? Write down the electronic configurations of 
(i) 11Na+ and (ii) 17Cl. (CB-02) [17Cl, 12Mg] (CB-00) 2
5. Write the four differences between atom and molecule. (CB-01, RB-02, 00) 2
6. What do you mean by fundamental particles. Give example. (CB-99) 2
7. i) What is quantum jump? Describe it. (JB-00, RB-01) 2
 ii) What is quantum mechanics? How rainbow is formed? (BB-02, JB-99) 2
8. Write down the main two postulates / assumtions of Bohr's atom model. State the atomic number and electronic configuration of two inert gases. (JB-04) 1+1=2
9. Show with the diagram the position of fundamental particles of an atom. (JB-02) 2
10. Explain the meaning of . (JB-02) 2
11. i) What is meant by ion? Cite examples for both positive and negative ions. (SB-02) 2
 ii) How ion is formed? Explain with example. (JB-03) 1
 iii) Write down the difference between atom and ion. (CtgB-05) 2
 iv) Explain, why :-
  Though nuclear particle protons possess identical charge why they do not repel each other? (CB-3, JB-01) 2
 v) What is meant by atomic number and mass number? Write with examples. (CB-05) 1+1=2

Broad Question
12. Give the electronic configuration with figure of N, F, Mg and Na. (DB-04, RB-02, 99) 3
13. Discuss briefly the modern theory related to the arrangement of electrons in an atom. (BB-05, DB-04, 02) 2
14. What is Bohr's atom model? Write its importance and limitation. (CB-02) 3
15. Discuss the importance, success and limitations of Bohr's atom model. (DB-00) 3
16. Write down the names of the stable fundamental particles of atom. Describe them in brief. (DB-99) 4
17. What its fundamental particles? Write about three of them. 4
18. i) How many are the fundamental particles? Describe briefly the fundamental particles. 4
 ii) Discuss the characteristics of fundamental particles. (BB-05, CB-05) 3
19. Why an atom is electrically charge neutral? Write down the four differences between atoms and ions. (CB-01) 3
20. i) Write down the basic postulates or assumptions of Bohr's atom model. Pre08 (ii) Based on Bohr's atom model, write the basic discussion on electronic configuration or arrangement of electrons in an atom. (RB-04, SB-04) 1+3=4
21. i) Discuss the solar system model of structure of atom. (CtgB-05) 3
 ii) Describe Rutherford's atom model? (RB-02, RB-99, DB-05) 3
22. What is meant by H2, 2H and H+? (CtgB-99 JB-08) 3
23. Write the rules of showing atomic number, atomic mass, number of charge, molecule etc and state one example. (JB-05) 3