Science C4, C5, C6 5.0 / 5 based on 1 rating ? SciencePeriodic tableAtomsChemistryGCSEAll boards Created by: Kelham HillierCreated on: 04-02-18 21:06 2310857491 Across 1. Who discovered the proton? (8) 3. L- (4, 4) 5. Who discovered the electron? (8) 8. What is group 7 called? (8) Down 2. Mass number = (7, 8) 3. L- (4, 4) 4. Who invented the Plum Pudding Model? (8) 7. Name an insoluble solid (4) 9. Who discovered the orbital? (4) 10. Who discovered the atom? (6)
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