Question

1. study the table below and use it to answer the questions that follow. (a) citing an example identify the type of bond and structure in substance b

Explanation:

• Ionic bond: Ionic compounds conduct electricity in the molten state (due to the movement of ions) but not in the solid state (ions are fixed in the lattice). Substance B has a high melting point (\(1207^{\circ}C\)) and boiling point (\(2324^{\circ}C\)), which is characteristic of ionic compounds. An example of an ionic compound is \(NaCl\) (sodium chloride).
• Giant ionic structure: Ionic compounds have a giant ionic lattice structure where ions are held together by strong electrostatic forces (ionic bonds). In the solid - state, the ions are in fixed positions in the lattice, so they cannot move to conduct electricity. When molten, the ions are free to move and conduct electricity.

Answer:

• Bond type: Ionic bond (e.g., in \(NaCl\), sodium donates an electron to chlorine to form \(Na^{+}\) and \(Cl^{-}\) ions which are held by ionic bonds).
• Structure: Giant ionic structure (a regular, repeating lattice of positive and negative ions).