ConceptConceptDocsDocuments

CAIE A-Level Chemistry 1.3.6 Electronic Configurations of Atoms and Ions

Practise deriving full or noble-gas configurations from proton number and ionic charge, including transition ions.

Syllabus
2028–2030
Course
Chemistry 9701
Level
AS

Exam points

  • match the total electron count to atomic number adjusted for the ionic charge
  • write either full notation or an allowed noble-gas core followed by correctly ordered outer sub-shells
  • for transition-metal cations, remove 4s electrons before 3d electrons and check unpaired-electron counts

1.3.6—Determine the electronic configuration question 1

[Maximum number: 1]

The Pauling electronegativity values of elements can be used to predict the chemical properties of compounds.

Use the information in Table 1.1 to answer the following questions.

Table 1.1

Table 1.1

Give the full electronic configuration of S2+(g)\mathrm{S}^{2+}(\mathrm{g}).

All question bank results loaded