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Edexcel A-Level Chemistry AS 2.13 Orbitals in Sub Shells I Each Take a Single Electron Before Pairing Up Ii Pair Up with Two Electrons of Opposite Spin Questions

Review A-Level Edexcel Chemistry orbital filling through p-orbital occupancy, single filling before pairing and paired-electron recognition.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • identify p-orbital occupancy after single filling and electron pairing in sub-shells

Edexcel A-Level Chemistry AS 2.13 Orbitals in Sub Shells I Each Take a Single Electron Before Pairing Up Ii Pair Up with Two Electrons of Opposite Spin Questions question 1

[Maximum number: 1]

The graph shows the first ionisation energies of some consecutive elements from Periods 2 and 3 of the Periodic Table.

The letters used to label the elements are not their chemical symbols.

Figure for Question Edexcel A-Level Chemistry AS 2.13 Orbitals in Sub Shells I Each Take a Single Electron Before Pairing Up Ii Pair Up with Two Electrons of Opposite Spin Questions question 1 — Edexcel A-Level Chemistry AS

Which element has only one p orbital containing a pair of electrons?

A

element U

B

element V

C

element W

D

element X

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