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Complete the dot-and-cross diagram in Figure 6.1 to show the bonding in chlorine, C1,. Only show the outer-shell electrons. Figure 6.1
See it on the paper →Hydrogen chloride is a gas. Complete the dot‑and‑cross diagram in Fig. 5.1 to show the electron arrangement in a molecule of hydrogen chloride. Cl H Draw outer shell electrons only.
See it on the paper →Hydrogen chloride is a gas. Complete the dot‑and‑cross diagram in Fig. 5.1 to show the electron arrangement in a molecule of hydrogen chloride. Cl H Draw outer shell electrons only.
See it on the paper →Chlorine, Cl 2 , is a simple molecule. Draw a dot-and-cross diagram to show the bonding in chlorine. You only need to show the outer-shell electrons.
See it on the paper →Complete the dot-and-cross diagram in Fig. 5.2 to show the bonding in water. Only show the outer-shell electrons. O H H Fig. 5.2
See it on the paper →Graphite is a form of the element carbon. Carbon reacts with oxygen to form carbon dioxide, CO 2 . Complete the dot-and-cross diagram in Fig. 8.2 to show the bonding in carbon dioxide. Only show the outer-shell electrons. O C O
See it on the paper →Fig. 5.1 shows the electronic structure in atoms of hydrogen and chlorine. Cl Fig. 5.1 Draw a dot-and-cross diagram to show the arrangement of outer-shell electrons in a molecule of hydrogen chloride gas. H (iii)
Most candidates correctly identified the shared bonds between hydrogen and oxygen. The rest of the structure was less successfully completed.
— Examiner report, May/June 2025, 0654/41 Q5(e)(i) (Cambridge)
The bonding in a molecule of carbon dioxide was generally completed accurately. Occasionally only single bonds between the carbon and the oxygen atoms were shown.
— Examiner report, February/March 2025, 0654/42 Q8(e) (Cambridge)
Many candidates were awarded two marks for their clear and accurate dot-and-cross diagrams.
— Examiner report, May/June 2023, 0654/33 Q5(c)(iii) (Cambridge)
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Complete the dot-and-cross diagram in Fig. 8.1 to show the bonding in a molecule of methane. You only need to show the outer-shell electrons. H H C H H Fig. 8.1
See it on the paper →Complete the dot-and-cross diagram in Fig. 5.1 to show the bonding in a molecule of water, H 2 O. Show only the outer-shell electrons. O H H Fig. 5.1
See it on the paper →Carbon has the electronic structure 2.4. Oxygen has the electronic structure 2.6. Carbon reacts with oxygen to make carbon dioxide, CO 2 . Complete the dot‑and‑cross diagram in Fig. 11.1 to show the bonding in carbon dioxide. Only show the outer‑shell electrons. O C O Fig. 11.1
See it on the paper →Fig. 5.2 shows the bonds between the atoms and the forces between the molecules in water. H H H O O H bond between atoms force between molecules Fig. 5.2 When water boils, the forces between the molecules are broken. Explain why the bonds between atoms are not broken.
See it on the paper →Draw a dot-and-cross diagram to show the bonding in water, H 2 O. Show only the outer shell electrons.
See it on the paper →Complete the dot and cross diagram to show the bonding in a molecule of hydrogen chloride, HCl . You only need to show the outer shell electrons. H Cl
See it on the paper →Draw a dot‑and‑cross diagram to show the bonding in molecule E. Only show the outer shell electrons. O H H
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