| 100% | ZIRCONIUM | 9 | Alphabetically last element in the periodic table |
| 85% | ZIRCONIUM | 9 | Last element alphabetically in the periodic table |
| 66% | HYDROGEN | 8 | The first element in the periodic table |
| 62% | XENON | 5 | Element above radon in the periodic table |
| 62% | TIN | 3 | Element above lead in the periodic table |
| 62% | HYDROGEN | 8 | Element number 1 in the Periodic Table |
| 61% | BORON | 5 | What B stands for, in the periodic table of elements |
| 61% | INERT | 5 | With 79-Across, entry in the periodic table's last column |
| 60% | ZIRCONIUM | 9 | Element whose name is alphabetically last on the periodic table |
| 59% | RAREGAS | 7 | Last-column element on the periodic table |
| 59% | GAS | 3 | Any element in the rightmost column of the periodic table |
| 58% | ALKALI | 6 | Any element in the first column of the periodic table, except hydrogen |
| 56% | IRON | 4 | Element that is represented in the periodic table as "Fe" |
| 55% | LEAD | 4 | It follows thallium in the periodic table |
| 54% | HYDROGEN | 8 | The lightest element in periodic table, symbol H |
| 53% | IRON | 4 | Fe, in the periodic table |
| 53% | NOBLEGASES | 10 | One column in the periodic table |
| 53% | GASES | 5 | Rightmost column in the periodic table |
| 52% | NEON | 4 | One of the inert gases in the periodic table of elements |
| 52% | NEON | 4 | It's under helium in the periodic table |
| 52% | TIN | 3 | It's above lead in the periodic table |
| 52% | RADON | 5 | It's beneath xenon in the periodic table |
| 52% | XXXX | 4 | It's under helium in the periodic table |
| 51% | XENON | 5 | It's next to iodine in the periodic table |
| 51% | PLATINUM | 8 | It's next to gold in the periodic table |
| 51% | HELIUM | 6 | The second element on the periodic table |
| 50% | HALOGEN | 7 | Any element in group 17 of the periodic table |
| 49% | MENDELEEV | 9 | He proposed the periodic table in 1869 |
| 49% | BERYLLIUM | 9 | Fourth element on the periodic table |
| 49% | BORON | 5 | 5th element on the periodic table |