| DEBROGLIE | The first physicist to suggest that subatomic particles can also have the properties of waves (2,7) |
| SLINKY | Toy used to teach physics students about the properties of waves |
| BRA | Garment that can also have -ssiere at the end |
| OLDE | An archaic or facetious spelling of a word for "aged, antiquated", which is used to suggest that something has a traditional or quaint charm (4) |
| ABED | To suggest that Lincoln's at Land's End, would be lying! |
| IDYL | A poem you can also have an extra student for (4) |
| QUANTUMMECHANICS | In which particles can be regarded as waves |
| PLACER | Alluvium from which gold particles can be washed; one who puts clay pieces into a saggar, ready for firing in a kiln; or, a fence, dealing in stolen goods (6) |
| ION | What particle can gain or lose electrons? (3) |
| ELECTRONS | Found in the nuclei of all atoms and discovered by J. J. Thomson, the lightest stable subatomic particles known (9) |
| ETERNALIN | Proverb - originally by Alexander Pope - which suggests that there might be light at the end of the tunnel (7,2) |
| ACOUSTICS | The study of the properties of sound (9) |
| DENATURED | Changed the properties of a turn of a sort, indeed (9) |
| MUONCHOPS | Splitting of subatomic particles? |
| QUIETDOWN | What nine answers in this puzzle suggest that you do twice? |
| DONTBESAD | "I also have good news, though!" |
| NEUTRINOS | Subatomic particles |
| POSITRONS | Subatomic particles with positive charge (9) |
| BEETHOVEN | A new study suggests that this composer suffered from lead poisoning |
| ROTBLAT | Sir Joseph ___, Nobel Peace Prize-winner who was the only physicist to leave the Manhattan Project on grounds of conscience |
