An isotope
Our answer book holds 51 answers to “An isotope”, from the first thing anyone would say to names almost nobody would think of. Most people go straight for Carbon-14, Uranium-235 or Deuterium, so those barely lift the rocket. It is a fairly short list: only 28 answers sit in the two rarest tiers, so reaching one takes real knowledge.
Science questions often have a fixed list behind them, so working through it in your head can turn up answers others skip. You will find it in stage 49, “Atom Smashers”, of the Science mission. The first stages of every mission are free, and later stages come with the full mission.
PLAY ONLYCLICK FREEThe most common answers
EVERYONE- Carbon-14
- Uranium-235
- Deuterium
- Tritium
- Uranium-238
- Carbon-12
- Plutonium-239
- Cobalt-60
- Iodine-131
These are the 9 answers we rate as most common, out of the 51 we know. They score the least. The other 42, including every rare one, stay inside the game.
How the 51 answers are spread
| EVERYONE | 4 |
| THE CROWD | 5 |
| SOME | 3 |
| A FEW | 11 |
| ALMOST NOBODY | 24 |
| ONLY YOU | 4 |
The rarer your answer, the farther your rocket flies. Rarity is our own estimate of how few people would think of an answer. How to play.