C2 Topic 1 5.0 / 5 based on 1 ratingTeacher recommended ? ChemistryAtomsThe Periodic TableGCSEEdexcel Created by: ldupre03Created on: 25-04-17 19:25 76243158 Across 1. what the vertical lines in the periodic table called? (6) 4. where is the mass number written when next to an element symbol? (3, 4) 5. Atoms of given element have the same number of what in their nuclei? (7) 8. who first made the periodic table? (9) Down 2. atoms of the same element with a different number of neutrons are called what? (8) 3. what the horizontal lines in the periodic table called? (7) 6. where are the metals in the periodic table? (2, 3, 4) 7. atoms have the same number of what? (7, 3, 9)
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