**This Powerpoint specifically uses the Cambridge iGCSE Chemistry Syllabus and covers all criteria for – Unit 2.5 Simple molecules and covalent bonds
**
Students will be able to -

CORE
1 State that a covalent bond is formed when a
pair of electrons is shared between two atoms
leading to noble gas electronic configurations

2 Describe the formation of covalent bonds in
simple molecules, including H2, Cl 2, H2O, CH4,
NH3 and HCl. Use dot-and-cross diagrams to
show the electronic configurations in these and
similar molecules

3 Describe in terms of structure and bonding the
properties of simple molecular compounds:
(a) low melting points and boiling points
(b) poor electrical conductivity

SUPPLEMENT
4 Describe the formation of covalent bonds in
simple molecules, including CH3OH, C2H4, O2,
CO2 and N2. Use dot-and-cross diagrams to
show the electronic configurations in these and
similar molecules

5 Explain in terms of structure and bonding the
properties of simple molecular compounds:
(a) low melting points and boiling points
in terms of weak intermolecular forces
(specific types of intermolecular forces are
not required)
(b) poor electrical conductivity

**Every Powerpoint includes learning objectives, a starter and plenary, suitable activities and review questions with mark scheme. We also provide a FREE pdf version of the file so it can easily be printed for students as a handout or uploaded to the school VLE system
**
Bring your Cambridge iGCSE Chemistry lessons to life with our expertly designed teaching resources. Each unit is tailored to the latest syllabus, offering ready-to-use lesson plans, engaging experiments, and visually clear notes that save hours of prep time. Whether you’re new to the course or refining your approach, The Science Shelf gives you everything you need to boost student understanding and exam success — all in one place.