The table gives information about the particles in four substances.
| Substance | Information about the particles |
|---|---|
| J | There are many separate particles. Each particle contains four atoms joined by shared pairs of electrons. |
| K | Positive ions are in a regular arrangement. Electrons released from the outer shells can move throughout the structure. |
| L | There are many separate chains. Each chain contains thousands of atoms joined by shared pairs of electrons. |
| M | Huge numbers of atoms are joined by shared pairs of electrons in one continuous structure. |
Explain which of the substances J, K, L and M are made of separate molecules and which are giant structures. Use evidence from the table.
Compare the forces holding substance J together with the forces holding substance L together.
122 exam-style questions on OCR GCSE Chemistry 2.2 Bonding, covering 2.2.1 Metals, non-metals and the Periodic Table, 2.2.2 Types of chemical bonding and dot and cross diagrams, 2.2.3 Limitations of bonding models, and 2.2.4 Reactivity, atomic number and the modern Periodic Table. Each one has a worked solution and a mark scheme showing where the marks go.