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CAIE A-Level Chemistry 1.3.8 Shapes of s and p Orbitals

Practise identifying and sketching spherical s orbitals and two-lobed p orbitals with correct nuclear position.

Syllabus
2028–2030
Course
Chemistry 9701
Level
AS

Exam points

  • draw an s orbital as a sphere centred on the nucleus rather than as a flat circle without context
  • draw a p orbital as two equal lobes on opposite sides of the nucleus
  • identify the required shape from the sub-shell of the electron being removed or the stated energy level

1.3.8—And sketch the shapes of s and p orbitals question 1

[Maximum number: 1]

The energy value required to remove the first electron from an atom of argon is circled on the graph.

Sketch the shape of the orbital that contains this electron.

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