Electron Structure Revision. 0.0 / 5 ? ChemistryElectron Structure Revision.A2/A-levelOCR Created by: ElishaGCreated on: 18-02-17 20:49 What is an orbital? A region of space within an atom which can hold up to two electrons with opposite spin. 1 of 12 Why do two electrons have opposite spin? 1)Both electrons have a negative charge.2) Negative charges repel each other. 2 of 12 What shape are s-orbitals? Spherical. 3 of 12 What shape are p-orbitals? Propeller shape. 4 of 12 How many electrons can be held in an s-sub-shell? 2 (one orbital). 5 of 12 How many electrons can be held in a p-sub-shell? 6 (3 p-orbitals). 6 of 12 How many electrons can be held in a d-sub-shell? 10 (5 d-orbitals). 7 of 12 How many electrons can be held in an f-sub-shell? 14 (7 f-orbitals). 8 of 12 How many electrons are in the first shell? 2. 9 of 12 How many electrons in the second shell? 8. 10 of 12 How many electrons in the third shell? 18. 11 of 12 How many electrons in the fourth shell? 32. 12 of 12
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