Radioactive element
Crossword Clue & Answers

30 November 2021
Last seen in: The Sun Cryptic

We found 9 answers for the crossword clue 'Radioactive element', the most recent of which was seen in the The Sun Cryptic.

We've seen this clue in both CRYPTIC and NON-CRYPTIC crossword publications.

We have given Radioactive element a popularity rating of 'Very Common' because it has featured in a numerous crossword publications and has multiple answers.

Radioactive element is a 2 word phrase featuring 19 letters.

We most recently saw this clue in 'The Sun Cryptic' on Tuesday, 30 November 2021 with the answer being RADON, but the most popular answer for this clue is URANIUM.

We've seen this clue in the following publications:

• The Sun Cryptic - 30 Nov 2021
• The Sun Cryptic - 2 Sep 2021
• The Mirror Quick - 26 Apr 2021
• The Daily Mail Quick - 12 Feb 2021
• The Daily Mail Quick - 29 Nov 2019
• The Guardian Quick - 14 Sep 2018
• The New York Times Crossword - 17 Apr 2017

Crossword Answers

5 Letters

RADON
A radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health

6 Letters

CERIUM
A ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group

RADIUM
An intensely radioactive metallic element that occurs in minute amounts in uranium ores

7 Letters

THORIUM
A soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands

URANIUM
A heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons

8 Letters

ACTINIUM
A radioactive element of the actinide series; found in uranium ores

ASTATINE
A highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium

RUBIDIUM
A soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite

9 Letters

PLUTONIUM
A solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239