Lithium is a metal in Group 1. Lithium burns in nitrogen to make lithium nitride.
Lithium nitride is an ionic compound.
The table shows information about lithium and nitrogen atoms.
| Atom | Atomic number | Electronic structure |
|---|---|---|
| lithium | 3 | 2.1 |
| nitrogen | 7 | 2.5 |
Describe what happens to the electrons when lithium atoms react with a nitrogen atom.
The table shows the ions in lithium nitride.
| Ion | Charge | Electronic structure |
|---|---|---|
| lithium ion | ? | 2 |
| nitride ion | ? | ? |
Complete the table.
Write the formula of lithium nitride.
A student says:
"Lithium nitride is made of molecules. In each molecule, three lithium atoms share electrons with one nitrogen atom."
Evaluate the student's statement.
64 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.