Time taken for radioactivity to reduce by 50%
12 letters — from California, group 1156, puzzle 5.
“Time taken for radioactivity to reduce by 50%”
| Clue | Answer | Letters | Copy |
|---|---|---|---|
| Time taken for radioactivity to reduce by 50% | HALF LIFE | 12 |
Where This Clue Appears
The CodyCross clue “Time taken for radioactivity to reduce by 50%” is answered by HALF LIFE, a 12-letter entry in the California world, group 1156, puzzle 5. The full puzzle page lists every other clue in that same grid, which is usually what you want if more than one row is blocking you.
Check the letter count before you commit. CodyCross fixes the length of every row before you type, and the game reuses the same clue wording in different worlds with entirely different solutions — so a clue that looks identical to one you have already solved may want a different word here. If your grid shows a different number of squares than the 12 above, you are almost certainly on the same clue from another world.
The answer HALF LIFE is also used for 1 other clue in the game, listed below. You can browse the whole game from the world index — 108 worlds, 2,144 groups and 10,716 puzzles — or check the separate daily crossword archive.