Igcse Model Questions Vol1 2025 Chemistry Question 2

A student is given an unknown metallic solid and is asked to identify it using density determination and periodic‑table data. The student measures the mass of the metal using an analytical balance and then determines its volume by water displacement in a graduated cylinder. The data recorded are shown below. | Measurement | Value | |-------------|-------| | Mass of metal (g) | 23.48 | | Initial water level (mL) | 45.0 | | Final water level after immersion (mL) | 51.3 | The periodic table data supplied to the class list the densities of several possible metals: - Aluminium: 2.70 g cm⁻³ - Copper: 8.96 g cm⁻³ - Iron: 7.87 g cm⁻³ - Zinc: 7.14 g cm⁻³ - Lead: 11.34 g cm⁻³ Using the experimental data and the table, answer the following: