Giant covalent structures
2 marks · NormalDescribe the bonding in diamond in terms of the arrangement of carbon atoms and the bonds formed.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
In diamond, each carbon atom is covalently bonded to four other carbon atoms in a tetrahedral arrangement, forming a giant three-dimensional network.
Also accept: Every carbon forms four covalent bonds with others, creating a 3D lattice.
Common mistakes: saying diamond is a molecule
Show mark scheme and worked solution
Marking points
B1 · 1 mark · States each carbon atom forms four covalent bonds.
B2 · 1 mark · Mentions 3D/tetrahedral arrangement/network.
Worked solution
In diamond, every carbon atom forms four covalent bonds in a tetrahedral arrangement, making a giant three-dimensional network of carbon atoms.