Chemistry- C1 Part B 0.0 / 5 ? ChemistryAtomic StructureGCSEAQA Created by: 13clarkenCreated on: 18-03-18 12:57 83724695101 Across 1. Only a certain number of electrons are allowed in each ... (5) 4. This man also proved that protons existed in the nucleus (10) 5. The modern periodic table has been sorted out with an increasing atomic number with repeating ... (10) 6. Alkaline metals- very reactive, soft and low density elements are in this group (5, 3) Down 2. Known as the halogens and all the elements have coloured vapours in this group (5, 5) 3. Metals are on the left, ... are on the right (3, 6) 7. This man proved that electrons were contained in shells (4) 8. Group 1 element with ... =Hydrogen and metal (5) 9. Metals and non metals form ... when they react (8, 4) 10. They form ... bonds with metals -> Halides (5)
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