10 Questions
Match the following compounds with their descriptions:
K2Cr2O7 = Important compound with uses in oxidation-reduction reactions KMnO4 = Important compound with uses as an oxidizing agent Iron = Transition element with significant historical importance Th, Pa, U = Inner transition elements proving excellent sources of nuclear energy
Match the following elements with their respective orbitals:
Transition elements = d orbitals Inner transition elements = f orbitals d-block elements = Progressively filled d orbitals f-block elements = Progressively filled 4f and 5f orbitals
Match the following elements with their group location in the periodic table:
Iron, copper, silver, gold = Transition elements in groups 3-12 Th, Pa, U = Inner transition elements d-block elements = Elements of groups 3-12 with progressively filled d orbitals f-block elements = Elements with progressively filled 4f and 5f orbitals
Match the following statements with their corresponding elements:
Iron, copper, silver, gold = Transition elements that have played important roles in human civilisation Th, Pa, U = Inner transition elements proving excellent sources of nuclear energy d-block elements = Contains elements of groups 3-12 with progressively filled d orbitals f-block elements = Consists of elements with progressively filled 4f and 5f orbitals
Match the following characteristics with their respective block elements:
General characteristics of d-block elements = Horizontal and group trends Properties of f-block elements = Comparative account of lanthanoids and actinoids Lanthanoids and actinoids = Electronic configurations, oxidation states, and chemical behaviour Transition and inner transition elements = Relative stability of various oxidation states in terms of electrode potential values
Explain the positions of d– and f-block elements in the periodic table.
The d-block elements are placed in groups 3-12 of the periodic table, while the f-block elements are placed separately at the bottom of the periodic table.
Describe the electronic configurations of the transition (d-block) and the inner transition (f-block) elements.
The transition (d-block) elements have electrons filling the d orbitals, while the inner transition (f-block) elements have electrons filling the f orbitals.
Discuss the relative stability of various oxidation states in terms of electrode potential values.
The relative stability of various oxidation states can be appreciated in terms of electrode potential values, which provide insight into the tendency of elements to gain or lose electrons.
Explain the general characteristics of the d– and f–block elements and the general horizontal and group trends in them.
The d– and f–block elements exhibit general characteristics such as variable oxidation states, formation of colored compounds, and catalytic activity. They show general horizontal and group trends in terms of atomic and ionic sizes, ionization enthalpy, and electronegativity.
Provide a comparative account of the lanthanoids and actinoids with respect to their electronic configurations, oxidation states, and chemical behaviour.
The lanthanoids and actinoids exhibit similarities in their electronic configurations and chemical behavior. However, the actinoids show a greater range of oxidation states and have more unstable behavior compared to the lanthanoids.
Test your knowledge of the positions and electronic configurations of d-block and f-block elements, as well as the stability of oxidation states and the preparation, properties, and structures of these elements. This quiz will help you reinforce your understanding of the periodic table and its elements.
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