This question is about chemical bonding.
The table shows three substances.
| Substance | Type of bonding |
|---|---|
| sodium chloride | ? |
| copper | ? |
| methane | ? |
Use words from the list: covalent, ionic, metallic
Complete the table.
Complete the sentences about sodium chloride.
Use words from the list: attraction, gain, lose, negative, positive, share
Sodium atoms ...... one electron to form sodium ions. Sodium ions have a ...... charge. Chlorine atoms ...... one electron to form chloride ions. The ions are held together by strong electrostatic ...... between oppositely charged ions.
The atoms in a molecule of methane are held together by covalent bonds.
What is a covalent bond?
Which two statements about the bonding in copper are correct?
Statement 1: Copper atoms share pairs of electrons.
Statement 2: Copper contains positive ions.
Statement 3: Copper contains delocalised electrons that are free to move.
Statement 4: Copper contains negative ions.
Statement 5: The bonding in copper is weak.
Write the numbers of the two correct statements.
Poly(ethene) is a polymer. It is made of very long chains of carbon and hydrogen atoms.
Name the type of bond that joins the atoms in each chain.
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.