AQA A Level Chemistry - Atomic Structure 0.0 / 5HideShow resource informationChemistryAtomic StructureThe Periodic TableA2/A-levelAQACreated by: luciastarrulzCreated on: 16-04-16 19:18 9387145610 Across 1. Has the same atomic number but a different atomic mass (7) 4. Have different numbers of electrons but the same number of protons (3) 5. An electron from 4s is promoted to 3d giving the formation [Ar] 4s1 3d10 which is more stable (6) 6. An electron from 4s is promoted to 3d giving the formation [Ar] 4s1 3d5 which is more stable (8) 9. Holds 2 electrons in 1 orbital (1, 8) 10. Holds 10 electrons in 5 orbitals (1, 8) Down 1. The ions move freely through an area. Light, high charge ions are quickest (3, 5) 3. Electrons in the same orbital repel each other as they are both negative, making them easier to remove (8, 9) 7. Created the "plum pudding" model where electrons are in a sphere of positive charge (1, 1, 8) 8. Average mass of one atom of an element divided by 1/12 the mass of one carbon-12 atom (8, 6, 4)
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