Question 1: Define a transition metal and describe one unique property that distinguishes it from other metals.

Answer: A transition metal is an element with an incomplete d subshell in at least one common oxidation state. A unique property is their ability to form colored compounds.

Question 2: Explain why transition metals are often used as catalysts in industrial processes.

Answer: Because of their ability to change oxidation states easily, transition metals can facilitate chemical reactions without being consumed.

Question 3: Multiple Choice: Which of the following is a common physical property of transition metals? A) Poor conductivity B) Malleability C) Non-magnetic D) Brittle

Answer: Malleability

Question 4: Fill in the blank: Transition metals typically have high melting points, which makes them suitable for use in _______________.

Answer: high-temperature industrial applications

Question 1: Describe how the magnetic property of iron, a transition metal, is used in engineering applications.

Answer: Iron's magnetic property is used in electric motors, transformers, and magnetic sensors to generate or detect magnetic fields.

Question 2: Calculations: A steel wire composed of 95% iron (Fe) and 5% carbon (C) has a mass of 200 grams. Calculate the mass of iron in the wire. (Use percentage composition).

Answer: Mass of iron = 200 g x 0.95 = 190 g

Question 3: Identify one safety precaution that must be taken when working with transition metal compounds in industrial settings.

Answer: Wearing protective gloves and masks to prevent contact with toxic or corrosive compounds.

Question 4: Data Analysis: A metal alloy containing copper and zinc shows increased strength and corrosion resistance. Explain how the properties of transition metals contribute to this improvement.

Answer: Transition metals like copper and zinc form alloys where their d-electron configurations allow for strong metallic bonds, enhancing strength and resistance to corrosion. The ability to form multiple oxidation states also helps in creating stable, durable alloys suitable for engineering applications.

Question 1: Explain how transition metals are used in the manufacturing of electronic components.

Answer: Transition metals like copper and silver are used for their excellent electrical conductivity and resistance to corrosion in electronic wiring and contacts.

Question 2: Multiple Choice: Which property makes transition metals ideal for use in jewelry and decorative items? A) Their color range and luster B) Their high reactivity C) Their brittleness D) Their lack of malleability

Answer: Their color range and luster

Question 3: Discuss how the properties of transition metals contribute to the durability of construction materials like bridges and buildings.

Answer: Transition metals such as steel (an alloy of iron and other elements) have high strength, malleability, and corrosion resistance due to their d-electron configurations and bonding. These properties enable construction materials to withstand environmental stress, load-bearing requirements, and long-term durability in infrastructure.