Enter a clue or pattern or both:

The Clue

Radioactive nucleus (6 letter answer)

The Answer




The answer ISOMER is uncommon, appearing about once every 550 puzzles.

Related Clues

Certain nuclide
Chemical compound
Chemical cousin
Chemical relative
Chemical "twin"
Compound variant
Glucose, to fructose
Related compound
One of chemically related compounds
Chemistry test topic
Compound resembling another
Compound similar to another
Diethyl ether, to butanol
Ethanol, to dimethyl ether
Fraternal twin, in chemistry
Chemical compound resembling another one


ISOMER as a noun:

1. a compound that exists in forms having different arrangements of atoms but the same molecular weight