Chapter 02 – Atoms, Molecules, and Ions
Chapter 02
Atoms, Molecules, and Ions
1.
In a cathode ray tube
2. The scientist who determined the magnitude of the electric charge of the electron was
Chapter 02 – Atoms, Molecules, and Ions
3. When J. J. Thomson discovered the electron, what physical property of the electron did he
measure?
4. Which of the following scientists developed the nuclear model of the atom?
5. Rutherford’s experiment with alpha particle scattering by gold foil established that
Chapter 02 – Atoms, Molecules, and Ions
6. Atoms of the same element with different mass numbers are called
7. An atom of the isotope 137Ba consists of how many protons (p), neutrons (n), and electrons
(e)?
8. Give the number of protons (p), neutrons (n), and electrons E) in one atom of 238U.
Chapter 02 – Atoms, Molecules, and Ions
9. Which of the following are isotopes?
10.
Complete the following chart, in order from left to right
Chapter 02 – Atoms, Molecules, and Ions
11.
Complete the following chart, in order from left to right
12.
Complete the following chart, in order from left to right
Chapter 02 – Atoms, Molecules, and Ions
13.
Complete the following chart, in order from left to right
14.
Complete the following chart, in order from left to right
Chapter 02 – Atoms, Molecules, and Ions
15. The elements in a column of the periodic table are known as
16. Which of the following elements is most likely to be a good conductor of electricity?
17. Which of the following elements is chemically similar to magnesium?
Chapter 02 – Atoms, Molecules, and Ions
18. Which of the following elements is chemically similar to oxygen?
20. An anion is defined as
Chapter 02 – Atoms, Molecules, and Ions
21. Which one of the following is an ion?
22. Which one of the following elements is most likely to form a 2+ ion?
23. Which one of the following elements is most likely to form a 2– ion?
24. A magnesium ion, Mg2+, has
25. An aluminum ion, Al3+, has:
26. An oxide ion, O2–, has:
Chapter 02 – Atoms, Molecules, and Ions
27. A phosphide ion has:
28. An iron(II) ion has:
29. How many protons and electrons are present in one Br– ion?
Chapter 02 – Atoms, Molecules, and Ions
30.
What are the two different ions present in the compound CaS?
31. What are the two different ions present in the compound Na2S?
Chapter 02 – Atoms, Molecules, and Ions
32. What are the two different ions present in the compound Li3N?
33. What are the two different ions present in the compound FeCl3?
34. What are the ions present in the compound CO2?
Chapter 02 – Atoms, Molecules, and Ions
35. What are the ions present in the compound CH4?
36. Which of the following is an example of an empirical formula?
37. What is the empirical formula for C10H22O2?
Chapter 02 – Atoms, Molecules, and Ions
38. What is the empirical formula for C6H14O?
39. What is the ion ClO4– named?
40. What is the formula for the ionic compound containing calcium ions and nitrate ions?
Chapter 02 – Atoms, Molecules, and Ions
41. What is the formula for the ionic compound containing calcium ions and oxide ions?
42. What is the formula for the ionic compound containing iron (III) ions and iodide ions?
43. What is the formula for the ionic compound containing sodium ions and nitride ions?
Chapter 02 – Atoms, Molecules, and Ions
44. What is the formula for the ionic compound containing barium ions and sulfate ions?
45. What are the two different ions present in the compound Al(NO3)3?
46. What are the two different ions present in the compound NH4NO3?
Chapter 02 – Atoms, Molecules, and Ions
47. Which is the correct formula for iron(II) phosphate?
48. Which of the following is the formula for hydroiodic acid?
49. The formula for calcium phosphate is
Chapter 02 – Atoms, Molecules, and Ions
50. The formula for magnesium sulfate is
51. The formula for sodium sulfide is
52. The name for NH4NO3 is
Chapter 02 – Atoms, Molecules, and Ions
53. The name for Ba(OH)2 is
55. The name for CuSO4·5H2O is