Sodium has the electronic structure 2.8.1. Chlorine has the electronic structure 2.8.7. Both elements are in Period 3 and both are very reactive.
Statement 1: Sodium atoms react by losing one electron.
Statement 2: Chlorine atoms react by gaining one electron.
Statement 3: Both sodium atoms and chlorine atoms react to form ions with the same electronic structure as argon.
Statement 4: Chlorine is more reactive than fluorine because its outer shell is further from the nucleus.
Which statements are correct?
1 and 2 only
1, 2 and 3 only
2 and 4 only
1, 2, 3 and 4
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.