Modern periodic law and periodic table structure - Question Bank
1. The element with atomic number 2 is:
2. The number of groups in the modern periodic table is:
3. The number of periods in the modern periodic table is:
4. Which of the following is a basic oxide?
5. Which of the following is an acidic oxide?
6. Which element is likely to have a positive electron gain enthalpy?
7. Which of the following has the highest first ionization energy?
8. Which of the following has the smallest atomic radius?
9. The element with atomic number 16 is Sulfur. It belongs to which group?
10. The element with atomic number 3 is Lithium. It belongs to which group?
11. The IUPAC name for the element with atomic number 117 is:
12. The element with atomic number 89 is Actinium (Ac). It is the first element of the actinide series. What is its block?
13. The element with atomic number 57 is Lanthanum (La). It is the first element of the lanthanide series. What is its block?
14. Transition metals are characterized by the presence of electrons in:
15. Which of the following is a transition metal?
16. The f-block elements are characterized by the filling of:
17. The first element in the p-block is Boron (atomic number 5). Its valence electron configuration is:
18. Which element is placed in Group 14 of the periodic table?
19. The p-block elements include:
20. Which of the following elements has the highest melting point?
21. The first element of Period 2 is Lithium (Li) and the first element of Period 3 is Sodium (Na). They are in the same group because they have the same:
22. Oxidation states of elements in the same group are often similar because they have the same number of:
23. Which of the following is the most metallic element?
24. Metallic character generally decreases across a period and increases down a group. Which of the following is the least metallic?
25. Metallic character of an element is related to its tendency to:
26. Electronegativity generally increases across a period and decreases down a group. Which element is the most electronegative?
27. Electronegativity is the tendency of an atom to:
28. Elements with highly negative electron gain enthalpy are:
29. Electron gain enthalpy is the energy change when:
30. Ionization enthalpy generally decreases down a group because:
31. Ionization enthalpy generally increases across a period because:
32. Ionization enthalpy is the energy required to remove:
33. Atomic radius generally increases down a group due to:
34. Atomic radius generally decreases across a period from left to right due to:
35. Which of the following is a metalloid?
36. The element with atomic number 118 is:
37. Lanthanides and actinides are collectively known as:
38. Which block of the periodic table contains elements with the valence electrons in the d-orbitals?
39. Noble gases are characterized by their:
40. Halogens belong to which group in the periodic table?
41. Which of the following is an alkali metal?
42. The element with atomic number 1 is:
43. Which period in the periodic table contains the largest number of elements?
44. Elements in the same group of the periodic table generally have similar:
45. The vertical columns in the periodic table are called:
46. The horizontal rows in the periodic table are called:
47. Henry Moseley's work established the importance of which property in determining the order of elements in the periodic table?
48. Which element was predicted by Mendeleev and later discovered, fitting perfectly into his periodic table?
49. The modern periodic law states that the physical and chemical properties of elements are periodic functions of their:
50. Who is credited with developing the first periodic table based on atomic weights?