There are 2 solutions. The longest is ELEMENTARY PARTICLE with 18 letters, and the shortest is ATOMIC PARTICLE with 14 letters.
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Solutions are between 14 and 18 letters long.
| Clue | Answer |
|---|---|
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|
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| Short-lived atomic particle (4) | |
| Unstable subatomic particle (4) | |
| Subatomic particle (4) | |
| Unstable particle (4) | |