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“Product of uranium decay”

The verified answer to the Newsday Crossword clue “Product of uranium decay”, with letter-by-letter analysis and the full puzzle context for the Saturday, August 1, 2026 puzzle.

Published · Across · 5 letters

Hints first

Letters 5
First letter R
Last letter N
R ? ? ? N

A 5-letter across entry from the Saturday puzzle

The Answer

R A D O N

The answer to “Product of uranium decay” is RADON

Letters 5
Direction Across
Published Aug 1, 2026

Letter analysis: the 5-letter answer

Vowels, consonants, and crossword construction notes
Unique 5 of 5 positions
Vowels 2 40% of word
Consonants 3 non-vowels
First letter R starts with

The clue “Product of uranium decay” appeared in the Newsday Crossword on Saturday, August 1, 2026 as a across entry. The verified answer is RADON — a 5-letter word that begins with R and ends with N.

This answer contains 2 vowels and 3 consonants. The Newsday Crossword is published daily by Newsday on Long Island and edited by Stan Newman, whose Saturday Stumper is widely considered one of the toughest mainstream crosswords in print.

Other clues with the answer RADON

RADON has been used as the answer for these Newsday Crossword clues
“Gas derived from uranium” May 6, 2026 “Inert gas” Sep 21, 2025

More clues from the August 1, 2026 puzzle

Saturday Newsday Crossword
View full puzzle
Crib sheet user 3 ℓ · D Believer's covering 5 ℓ · A Long-term aspirations 8 ℓ · D Cooled or refreshed 6 ℓ · D D'__ peu (shortly) 3 ℓ · D Earth's largest active erupter 8 ℓ · D Enter 8 ℓ · D Light structures 9 ℓ · A Pillar of Islam 4 ℓ · D Map name near Shell Key 4 ℓ · D Certain offshore harvester 6 ℓ · D Crossword neighbor, often 6 ℓ · D What Q was added to, circa 1970 3 ℓ · D About 27,000 gallons on the farm 8 ℓ · D Moved with blades 5 ℓ · D High-fashion "Emporio" line 6 ℓ · D Verbal matter of fact 9 ℓ · A Legend of transportation 5 ℓ · A Thwart 9 ℓ · A Open with effort 5 ℓ · A

Frequently asked questions about “Product of uranium decay”

What is the answer to “Product of uranium decay” in the Newsday Crossword?

The verified answer is RADON — a 5-letter word that appeared as a across entry on Saturday, August 1, 2026.

How many letters is the answer to “Product of uranium decay”?

The answer RADON contains 5 letters.

Was “Product of uranium decay” an across or down clue?

This clue ran as a Across entry.

Is this site affiliated with Newsday?

No. This is an independent fan reference site — we are not affiliated with Newsday. The Newsday Crossword is a trademark of its respective owner. We solve and verify each Newsday Crossword puzzle manually before publishing the answer key.

Product of uranium decay — Newsday Crossword Clue Answer | Newsday Crossword Answers