Exploring D and F Block Elements

What are transition metals and where are they located in the periodic table?

• Transition metals are found in groups 1 and 2.

• Transition metals are located in groups 3 to 12 of the periodic table.

• Transition metals are located in the lanthanide series.

• Transition metals are only found in the f-block of the periodic table.

List three common properties of transition metals.

• Always form colorless compounds

• Poor conductors of heat and electricity

• Only one oxidation state

• 1) Multiple oxidation states, 2) Good conductors of heat and electricity, 3) Formation of colored compounds

What is the significance of the d-block in the periodic table?

• The d-block is irrelevant to chemical reactions and bonding.

• The d-block contains transition metals that are important for their unique chemical properties and applications.

• The d-block contains only nonmetals with similar properties.

• The d-block is primarily composed of noble gases.

How do the properties of lanthanides differ from those of transition metals?

• Lanthanides differ from transition metals in their electron configuration, oxidation states, atomic sizes, and chemical properties.

• Lanthanides are typically found in nature as pure elements, unlike transition metals.

• Transition metals have higher oxidation states than lanthanides.

• Lanthanides have more complex electron configurations than transition metals.

What are some common uses of lanthanides in technology?

• Common uses of lanthanides include strong magnets, phosphors in displays, catalysts, and rechargeable batteries.

• Insulation in electrical wiring

• Construction materials for buildings

• Food additives for flavor enhancement

Explain the electron configuration of a typical transition metal.

• Transition metals only have s orbitals filled.

• Transition metals have completely filled d orbitals.

• Transition metals have partially filled d orbitals, with configurations like [Ar] 4s2 3d6 for iron.

• Transition metals have no d orbitals in their configuration.

Which transition metal is known for its high melting point?

• Tungsten

• Iron

• Copper

• Nickel

What role do transition metals play in biological systems?

• Transition metals serve as energy sources for cellular respiration.

• Transition metals are primarily used for structural support in cells.

• Transition metals act as essential cofactors in enzymes, facilitate electron transfer, and are involved in oxygen transport.

• Transition metals are only involved in photosynthesis processes.

Describe the general trends in ionization energy among transition metals.

• Ionization energy increases across a period and decreases down a group among transition metals.

• Ionization energy is highest for the first transition metal and decreases for subsequent metals.

• Ionization energy remains constant across a period and down a group among transition metals.

• Ionization energy decreases across a period and increases down a group among transition metals.

What is the electron configuration of iron (Fe)?

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 4d⁶

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁵

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁷