Modern periodic law, periodic table structure, s p d and f block elements - Question Bank

1. The general electronic configuration of d-block elements is:
A) $(n-1)d^{1-10} ns^{1-2}$
B) $ns^2 np^{1-6}$
C) $ns^2$
D) $(n-2)f^{1-14} ns^2$
2. Which of the following is a characteristic property of f-block elements?
A) High melting and boiling points
B) Tendency to form colored compounds
C) Inertness
D) Formation of basic oxides only
3. Metalloids are generally found along the boundary between metals and non-metals in the periodic table. Which block contains the most metalloids?
A) s-block
B) p-block
C) d-block
D) f-block
4. The element with atomic number 58 belongs to which block?
A) s-block
B) p-block
C) d-block
D) f-block
5. The element with atomic number 26 belongs to which block?
A) s-block
B) p-block
C) d-block
D) f-block
6. The element with atomic number 3 belongs to which block?
A) s-block
B) p-block
C) d-block
D) f-block
7. The element with atomic number 118 belongs to which block?
A) s-block
B) p-block
C) d-block
D) f-block
8. Which element has the electronic configuration $[Xe] 4f^7 6s^2$?
A) Gadolinium
B) Europium
C) Terbium
D) Dysprosium
9. Which element has the electronic configuration $[Ar] 3d^{10} 4s^1$?
A) Zinc
B) Copper
C) Nickel
D) Gold
10. Which element has the electronic configuration $1s^2 2s^2 2p^6 3s^2 3p^4$?
A) Sulfur
B) Oxygen
C) Selenium
D) Tellurium
11. Which element has the electronic configuration $1s^2 2s^2 2p^6 3s^1$?
A) Lithium
B) Sodium
C) Potassium
D) Rubidium
12. The number of elements in the sixth period is:
A) 18
B) 28
C) 32
D) 36
13. The number of elements in the fifth period is:
A) 8
B) 10
C) 18
D) 32
14. The number of elements in the fourth period is:
A) 8
B) 10
C) 18
D) 32
15. The number of elements in the third period is:
A) 2
B) 8
C) 10
D) 18
16. The number of elements in the second period is:
A) 2
B) 8
C) 10
D) 18
17. The number of elements in the first period is:
A) 2
B) 8
C) 10
D) 18
18. Which period begins with Hydrogen?
A) Period 1
B) Period 2
C) Period 3
D) Period 4
19. Noble gases have:
A) High ionization energy
B) Low ionization energy
C) High electron affinity
D) Tendency to form positive ions easily
20. The elements of Group 18 are known as:
A) Halogens
B) Chalcogens
C) Noble gases
D) Alkaline earth metals
21. Which of the following is a characteristic property of p-block elements?
A) Form +1 oxidation state only
B) Tend to gain or lose electrons to form ionic compounds
C) Exhibit a wide range of oxidation states
D) Are generally soft and have low melting points
22. Which of the following is NOT a characteristic property of s-block elements?
A) Highly electropositive
B) Low ionization enthalpy
C) Tendency to form covalent compounds
D) Strong reducing agents
23. Elements with atomic numbers greater than 92 are called:
A) Lanthanides
B) Actinides
C) Transuranic elements
D) Noble gases
24. The total number of elements in the 7th period of the periodic table is:
A) 18
B) 28
C) 32
D) 36
25. All actinides are:
A) Non-metals
B) Metalloids
C) Radioactive
D) Noble gases
26. Which element is the first member of the actinide series?
A) Thorium (Th)
B) Uranium (U)
C) Actinium (Ac)
D) Protactinium (Pa)
27. Which element is the first member of the lanthanide series?
A) Lanthanum (La)
B) Cerium (Ce)
C) Actinium (Ac)
D) Thorium (Th)
28. Actinides are the elements where the filling of f-orbitals occurs in the:
A) n=4 shell
B) n=5 shell
C) n=6 shell
D) n=7 shell
29. Lanthanides are the elements where the filling of f-orbitals occurs in the:
A) n=4 shell
B) n=5 shell
C) n=6 shell
D) n=7 shell
30. The two series of f-block elements are called:
A) Actinides and Transactinides
B) Lanthanides and Actinides
C) Lanthanoids and Actinoids
D) Inner and Outer transition series
31. The f-block elements are characterized by the filling of:
A) d-orbitals
B) p-orbitals
C) s-orbitals
D) f-orbitals
32. The f-block elements are known as:
A) Transition elements
B) Noble gases
C) Inner transition elements
D) Alkaline earth metals
33. Which of the following is a characteristic property of transition elements?
A) They form acidic oxides.
B) They exhibit variable oxidation states.
C) They are highly electropositive.
D) They have a stable electron configuration.
34. Which groups of the periodic table constitute the d-block elements?
A) Group 1, 2, 13-18
B) Group 3 to 12
C) Lanthanides and Actinides
D) Group 1, 2, 13-16
35. The d-block elements are characterized by the filling of:
A) Outer s-orbitals
B) Inner d-orbitals
C) Outer p-orbitals
D) Inner f-orbitals
36. The d-block elements are also known as:
A) Alkali metals
B) Halogens
C) Transition elements
D) Inner transition elements
37. Which of the following elements is a non-metal and belongs to the p-block?
A) Sodium
B) Magnesium
C) Chlorine
D) Zinc
38. Which groups of the periodic table constitute the p-block elements?
A) Group 1 and 2
B) Group 3 to 12
C) Group 13 to 18
D) Group 17 and 18
39. The p-block elements are characterized by the filling of:
A) s-orbitals
B) p-orbitals
C) d-orbitals
D) f-orbitals
40. Alkaline earth metals belong to which block of the periodic table?
A) s-block
B) p-block
C) d-block
D) f-block
41. Alkali metals belong to which block of the periodic table?
A) p-block
B) d-block
C) f-block
D) s-block
42. Which of the following groups constitutes the s-block elements?
A) Group 1 and Group 2
B) Group 13 to Group 18
C) Group 3 to Group 12
D) Group 1 and Group 18
43. The s-block elements are characterized by the filling of:
A) p-orbitals
B) d-orbitals
C) s-orbitals
D) f-orbitals
44. Elements in the same period of the periodic table have the same:
A) Number of valence electrons
B) Number of occupied electron shells
C) Chemical reactivity
D) Metallic character
45. Elements in the same group of the periodic table have similar:
A) Atomic numbers
B) Number of electron shells
C) Number of valence electrons
D) Physical states at room temperature
46. Which period is the longest in the Modern Periodic Table?
A) Period 1
B) Period 3
C) Period 6
D) Period 7
47. How many groups are there in the Modern Periodic Table?
A) 15
B) 16
C) 17
D) 18
48. How many periods are there in the Modern Periodic Table?
A) 5
B) 6
C) 7
D) 8
49. The Modern Periodic Table is based on the atomic number of elements. What does the atomic number represent?
A) The number of protons in the nucleus
B) The number of neutrons in the nucleus
C) The total number of nucleons
D) The number of electrons in the outermost shell
50. According to the Modern Periodic Law, the physical and chemical properties of elements are periodic functions of their:
A) Atomic mass
B) Atomic number
C) Number of neutrons
D) Valence electrons
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