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Electronic Structure

Key Stage 4

Meaning

The electronic configuration of an atom is the way the electrons are arranged in orbitals around the nucleus.

About The Electronic Configuration

The electronic configuration of an atom is written by stating the number of electrons in each electron shell.
As an example Argon has 2 electrons in the first shell, 8 in the second and 8 in the last, so the electronic configuration is 2,8,8.
ElectronicConfiguration.png
ElectronicConfiguration2.png
The two diagrams show how electrons are configured in the first 20 elements on the Periodic Table.

References

AQA

Electronic structure, page 121, GCSE Combined Science Trilogy 1, Hodder, AQA
Electronic structure, pages 28-31, 164, GCSE Chemistry; Student Book, Collins, AQA
Electronic structure; and the periodic table, pages 127-8, GCSE Combined Science Trilogy 1, Hodder, AQA
Electronic structure; stable, pages 38, 43, 59, 60-1, 164-5, GCSE Chemistry; Student Book, Collins, AQA
Electronic structures, pages 12-14, 18-19, 24-25, 30-31, GCSE Chemistry; Third Edition, Oxford University Press, AQA
Electronic structures, pages 20, 23, 28, GCSE Chemistry; The Revision Guide, CGP, AQA
Electronic structures, pages 44, 45, 71, GCSE Combined Science Trilogy; Chemistry, CGP, AQA
Electronic structures, pages 44, 45, 73, GCSE Chemistry, CGP, AQA

OCR

Electronic structures, page 17, Gateway GCSE Chemistry; The Revision Guide, CGP, OCR
Electronic structures, page 88, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR
Electronic structures, pages 54-57, 70, 138, Gateway GCSE Chemistry, Oxford, OCR