| 100% | NOBLEGASES | 10 | One column in the periodic table |
| 81% | GASES | 5 | Rightmost column in the periodic table |
| 70% | INERT | 5 | With 79-Across, entry in the periodic table's last column |
| 63% | IRON | 4 | Fe, in the periodic table |
| 62% | NEON | 4 | One of the inert gases in the periodic table of elements |
| 60% | XENON | 5 | Element above radon in the periodic table |
| 60% | TIN | 3 | Element above lead in the periodic table |
| 60% | ZIRCONIUM | 9 | Alphabetically last element in the periodic table |
| 60% | HYDROGEN | 8 | Element number 1 in the Periodic Table |
| 60% | LEAD | 4 | It follows thallium in the periodic table |
| 60% | ZIRCONIUM | 9 | Last element alphabetically in the periodic table |
| 60% | INERT | 5 | Like gases in the rightmost column of the periodic table |
| 60% | GAS | 3 | Any element in the rightmost column of the periodic table |
| 60% | NEON | 4 | It's under helium in the periodic table |
| 60% | TIN | 3 | It's above lead in the periodic table |
| 60% | RADON | 5 | It's beneath xenon in the periodic table |
| 60% | XXXX | 4 | It's under helium in the periodic table |
| 59% | XENON | 5 | It's next to iodine in the periodic table |
| 58% | ALKALI | 6 | Any element in the first column of the periodic table, except hydrogen |
| 58% | BORON | 5 | What B stands for, in the periodic table of elements |
| 58% | IRON | 4 | Element that is represented in the periodic table as "Fe" |
| 58% | GROUP | 5 | Any set of elements in a column on the periodic table |
| 57% | MENDELEEV | 9 | He proposed the periodic table in 1869 |
| 56% | HYDROGEN | 8 | The first element in the periodic table |
| 55% | GASES | 5 | Rightmost column of the periodic table, e.g. |
| 54% | WIN | 3 | One in the plus column |
| 54% | ANTI | 4 | One in the "no" column |
| 51% | ELEMENT | 7 | One of 118 on the periodic table |
| 51% | GROUP | 5 | One of 18 on the periodic table |
| 51% | ROLES | 5 | List in one column of the credits |