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Periodic Table Patterns I
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| A | B |
| An alkali earth metal | Barium |
| The smallest atom | Helium |
| Transition metal | Silver |
| Cation | Mg2+ |
| Anion | N3- |
| Halogen | E-configuration ends in "p5" |
| Alkali metal | Biggest atom in its period |
| Period | Rows (horizontal) |
| Group | Columns (vertical) |
| A metalloid | boron |
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