hydrogen

Science Science 22 of 22 appearances
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"hydrogen" appearances by year

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All Science clues by year

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# Clue Answer As Given Value Round Category Air Date Show
Each atom of this element has only one proton hydrogen $800 DJ SCIENCE CLASS 2021-03-30 #8367
DHMO, or di-this monoxide, is a jocular way to say "water" hydrogen $200 J SCIENCE ABBREV. 2020-11-20 #8285
Made with deuterium, an isotope of this element, heavy water has the formula D2O hydrogen $400 J HEAVY SCIENCE 2019-05-28 #8002
pH, the measure of acidity, stands for "potential of" this most abundant element hydrogen $2,000 DJ SCIENCE 2009-12-17 #5814
(Kelly of the Clue Crew shows some punctured metal tiles.) To evaluate materials likeshuttle shielding, projectiles are fired at speeds up to 16,000 miles per hour using this simple gas, compressed hydrogen $2,000 DJ SPACE SCIENCE 2008-06-12 #5484
Every second, fusion reactions in the Sun convert about 600 million tons of this element into helium hydrogen $400 J SCIENCE 2008-03-28 #5430
When combined with oxygen, this lightest chemical element makes water hydrogen DD $600 J SCIENCE 2003-04-28 #4306
The simplest organic compounds are made of just carbon & this element hydrogen $800 DJ PHYSICAL SCIENCE 2002-04-02 #4057
Atoms of this lightest element make up about 90% of the universe Hydrogen $400 DJ SCIENCE 1997-07-04 #2975
The pH in pH scale stands for the "potential of " this element Hydrogen $400 J SCIENCE 1996-04-10 #2683
In its most common isotope, it's the only element whose atoms lack neutrons hydrogen DD $2,000 DJ GENERAL SCIENCE 1993-10-21 #2099
It's the element whose atomic weight is closest to its atomic number hydrogen $100 J SCIENCE 1993-06-28 #2046
Voyager data indicate that about 88% of Jupiter's atmosphere is this light gas hydrogen $400 J SCIENCE 1993-01-01 #1920
This light gas is the most abundant element in water hydrogen $200 DJ SCIENCE 1992-03-25 #1753
About 0.01 percent of this gas found in nature is the deuterium isotope hydrogen $400 J PHYSICAL SCIENCE 1991-09-11 #1613
When Henry Cavendish discovered this lightest-known element, he called it inflammable air Hydrogen $200 J SCIENCE 1991-01-17 #1474
The name of this element is from the French for "water generating" hydrogen $400 J SCIENCE 1987-12-29 #767
An atom of this element has only 1 electron hydrogen $800 DJ SCIENCE 1987-09-30 #703
In 1766, Henry Cavendish made 1st full study of this simple gas he called "inflammable air" hydrogen $200 DJ SCIENCE 1987-04-16 #614
The name for this gas comes from the French for "water former" hydrogen $500 J SCIENCE 1987-03-05 #584
When "She Loves You" was #1 on the music charts, this was #1 on the periodic chart hydrogen $400 DJ SCIENCE 1986-03-18 #397
It's the lightest element & highly flammable, as the Hindenburg found out the hard way hydrogen $100 J SCIENCE 1985-05-28 #187
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