Titanium is a transition metal.
Describe the structure and bonding in a metal. You may include a diagram description in your answer.
Titanium is malleable even though metallic bonds are strong. Explain why metals are malleable.
Titanium can conduct electricity in the solid and liquid state. Explain why metals can conduct electricity.
An alloy is a mixture of a metal with one or more other elements. When titanium is mixed with aluminium, it makes an alloy that can be used for high-performance bicycle frames. Adding different amounts of aluminium changes the properties of the alloy.
| Alloy | Percentage of aluminium (%) | Density (g/cm3\text{g/cm}^3g/cm3) | Melting point (∘C{}^\circ\text{C}∘C) | Strength (MPa\text{MPa}MPa) |
|---|---|---|---|---|
| X | 4.00 | 4.43 | 1650 | 850 |
| Y | 5.50 | 4.41 | 1620 | 890 |
| Z | 6.00 | 4.40 | 1600 | 900 |
A scientist thinks that alloy Z is best for making a high-performance bicycle frame. Is he correct? Explain your answer using evidence from the table.
The scientist uses the particle model to show the elements present in alloy Y. Look at his diagram:
Calculate the percentage of aluminium atoms in the diagram of alloy Y.
Use your answer to part (c)(i) to explain if the diagram accurately shows the structure of alloy Y.