| 100% | GASES | 5 | Rightmost column of the periodic table, e.g. |
| 70% | INERT | 5 | Like gases in the rightmost column of the periodic table |
| 70% | GAS | 3 | Any element in the rightmost column of the periodic table |
| 64% | GASES | 5 | Rightmost column in the periodic table |
| 53% | ALKALI | 6 | Any element in the first column of the periodic table, except hydrogen |
| 53% | RAREGASES | 9 | Contents of the rightmost column of a table |
| 52% | LORE | 4 | Tales of the Round Table, e.g. |
| 52% | METALS | 6 | Most of the periodic table |
| 51% | TRACEELEMENT | 12 | Depict part of the periodic table? |
| 51% | DMITRI | 6 | ___ Mendeleev, creator of the periodic table |
| 49% | HALOGEN | 7 | Any element in group 17 of the periodic table |
| 49% | ELEMENTS | 8 | The Periodic Table is full of them |
| 48% | GROUP | 5 | Any set of elements in a column on the periodic table |
| 47% | NOBLEGASES | 10 | One column in the periodic table |
| 46% | INERT | 5 | Like the final column of elements on the periodic table |
| 46% | BORON | 5 | What B stands for, in the periodic table of elements |
| 46% | INERT | 5 | With 79-Across, entry in the periodic table's last column |
| 45% | SCI | 3 | Subject with the periodic table and the laws of motion, for short |
| 43% | INERT | 5 | Like the rightmost elements on the periodic table |
| 42% | GALACTIC | 8 | Of the Milky Way, e.g. |
| 41% | METALS | 6 | Elements on the left side of the periodic table |
| 41% | ELEMENT | 7 | One of 118 on the periodic table |
| 41% | ARGON | 5 | Neighbor of krypton on the periodic table |
| 41% | ARGON | 5 | Neighbor of chlorine on the periodic table |
| 41% | GROUP | 5 | One of 18 on the periodic table |
| 40% | EMIR | 4 | Member of the House of Saud, e.g. |
| 40% | SAGAS | 5 | "The Lord of the Rings" books, e.g. |
| 40% | ETS | 3 | "The War of the Worlds" foes, e.g. |
| 40% | BOAST | 5 | "I'm king of the world!," e.g. |
| 40% | ALIBI | 5 | "I was out of the country," e.g. |