| 100% | NEPTUNIUM | 9 | Chemical element named after the eighth planet |
| 65% | URANIUM | 7 | Element named after the seventh planet |
| 55% | SELENIUM | 8 | Element named after the moon |
| 55% | LUTETIUM | 8 | Chemical element Lu, named after the city of Paris |
| 54% | NOBELIUM | 8 | Chemical element named after dynamite inventor |
| 54% | HELIUM | 6 | Chemical element named after Greek god Helios |
| 53% | THORIUM | 7 | Element named after the Norse god of thunder |
| 53% | HYDROGEN | 8 | Element named after the Greek word for water |
| 53% | HELIUM | 6 | Element named after the Greek word for "sun" |
| 52% | NEPTUNIUM | 9 | Element named after a planet |
| 50% | HOLMIUM | 7 | Chemical element named for the city of Stockholm |
| 50% | IRIDIUM | 7 | Brittle metal element named after the Greek goddess of the rainbow |
| 50% | PLUTONIUM | 9 | Element named after what is now a dwarf planet |
| 49% | RHENIUM | 7 | Element named after a river on the France-Germany border |
| 49% | TIN | 3 | Chemical element with the shortest name |
| 48% | ORBIT | 5 | Gum brand named after the movement of a planet |
| 47% | NEPTUNE | 7 | Planet named after the Roman god of the sea |
| 47% | PLUTO | 5 | Planet named after the Roman god of the underworld |
| 47% | OXYGEN | 6 | TV channel named after a chemical element |
| 45% | EARTH | 5 | The only planet not named after mythology |
| 45% | PLUTO | 5 | Dwarf planet that lent its name to the radioactive chemical element, Plutonium |
| 44% | JUPITER | 7 | Planet named after the king of the Roman gods, with 95 known moons |
| 44% | NEPTUNE | 7 | Planet named after the Roman god of the sea, with 14 known moons |
| 44% | ERIS | 4 | Dwarf planet named after the Greek goddess of discord |
| 44% | MARS | 4 | Red planet named after the Roman God of War |
| 44% | SATURN | 6 | Planet named after the Roman god of wealth and agriculture, with 146 known moons |
| 43% | MARS | 4 | Planet named after the Roman god of war with 2 known moons, Phobos and Deimos |
| 43% | CURIE | 5 | Marie who discovered two chemical elements and had a third named after her |
| 42% | TIN | 3 | The only chemical element with a three-letter name |
| 41% | BOHRIUM | 7 | Element named after niels |