thumbnail

Elements that are Gases at Room Temperature

There are 11 elements that are gases at room temperature. Can you name them?
Includes elements in monatomic and diatomic molecules
At one atmosphere of pressure
Quiz by Quizmaster
Rate:
Last updated: August 12, 2019
You have not attempted this quiz yet.
First submittedMay 29, 2016
Times taken47,021
Average score72.7%
Rating4.76
2:00
Enter answer here
0
 / 11 guessed
The quiz is paused. You have remaining.
Scoring
You scored / = %
This beats or equals % of test takers also scored 100%
The average score is
Your high score is
Your fastest time is
Keep scrolling down for answers and more stats ...
Element
Argon
Chlorine
Fluorine
Helium
Element
Hydrogen
Krypton
Neon
Nitrogen
Element
Oxygen
Radon
Xenon
37 Comments
+6
Level 77
May 29, 2016
It'd be a bit more challenging if the answers were in random order. Lacked the one between C and H and just thought about the letters in order.
+30
Level 85
May 30, 2016
I took a quiz yesterday that had a comment complaining that the answers *weren't* in alphabetical order. You can't win for losing.
+1
Level 80
Nov 5, 2020
That's how I got radon.
+4
Level 68
Jun 8, 2023
You should put all of them in alphabetical order, except one of them.
+1
Level 84
May 31, 2016
Almost forgot the most obvious one.
+49
Level 89
Jul 4, 2016
Yeah, I nearly missed xenon too.
+12
Level 55
Jul 5, 2016
Oh my God I missed oxygen. I think I need more coffee. Wow.
+5
Level 61
Jul 7, 2016
You don't get to breathe now.
+12
Level 55
Jul 7, 2016
O, well there's my problem.
+2
Level 59
Sep 28, 2020
He can breathe, he just needs to drink liquid oxygen.
+3
Level 70
Jan 3, 2019
you needed more oxygen ;) the brain needs it ya know
+1
Level 34
Jan 7, 2018
Chlorine is a gas at room temperature and standard pressure.

Bromine and iodine also exist as gases at room temperature and standard pressure though their main forms are not gas.

+3
Level 84
Oct 13, 2019
Bromine is liquid at SATP and Iodine is solid
+1
Level 48
Aug 20, 2021
The caveats state that only monatomic and diatomic molecules are counted, and neither Br2 nor I2 are gases at STP
+3
Level 89
Jul 6, 2018
How do 71% know Xenon is a gas, 50% for radon and only 48% for chlorine? It was the original gas used in World War One. Greenish-yellow clouds that people had no defense against so they'd urinate on a cloth and hold it to their airways to neutralize it.
+5
Level 56
Oct 9, 2019
Perhaps some don't know how to write it in English.
+13
Level 67
Oct 13, 2019
Most of us encounter chlorine in swimming pools, so it's weird to think of it as a gas.
+11
Level 59
Sep 28, 2020
Yep, plus its easiest to just write all the noble 'gases' down, before looking elsewhere.
+2
Level 78
Aug 21, 2021
It was a Canadian high school chemistry teacher who allegedly thought to urinate on a cloth whilst in the first gas attack on Ypres. But I don't think most people think of chlorine gas primarily in terms of World War I history.
+1
Level 25
Sep 8, 2019
What about Argon, is a noble gas. At room temperature is in gas state.
+11
Level 77
Feb 4, 2021
Yes, that's why it's one of the answers.
+4
Level 75
Oct 9, 2019
I was on a roll - neon, radon, xenon, boron...oh, wait.
+1
Level 68
Oct 10, 2019
Wow I didn't expect to get all of them :l
+1
Level 68
Oct 10, 2019
Fun tho
+1
Level 38
Feb 27, 2021
Nearly forgot hydrogen
+1
Level 45
Aug 20, 2021
Good quiz. Nice general knowledge.
+1
Level 84
Aug 20, 2021
Mr. Serico would be pround that all these years later, I still remember HONK-ull-briff (HONClBrIF) for the diatomic elements. 10-of-11. Krypton was my kryptonite.
+2
Level 65
Aug 22, 2021
oh i prove i'll got 11 in mandarin but i only got 4 here
+1
Level 63
Aug 25, 2021
I forgot how to spell Chlorine dammit.
+1
Level 54
Oct 22, 2021
Oganesson?
+1
Level 51
Jul 25, 2022
Oganesson is actually a solid at room temperature.
+1
Level 46
Nov 15, 2022
we actually don't know
+2
Level 59
Jun 8, 2023
like one atom of it has ever existed how tf would we know that bro💀
+1
Level 69
Jul 12, 2022
I'd be extremely curious to ask any chemist what would happen if all of these gasses were mixed.
+4
Level 85
Jun 8, 2023
Helium, neon, argon, krypton, xenon, and radon are noble gases. They wouldn't react with the other gases, but radon is radioactive.

Hydrogen is +1, and fluorine and chlorine are -1, so they'd happily bond. Hydrogen fluoride is a poisonous, colorless gas or liquid that becomes hydrofluoric acid in water. Likewise, hydrogen chloride becomes hydrochloric acid.

Oxygen is -2 and will bond with a couple of hydrogens, forming dihydrogen monoxide (water).

Nitrogen is -3 and will grab three hydrogens to become trihydrogen mononitride (ammonia), a colorless, irritating gas.

Other reactions that could occur would be oxygen bonding with itself to form O2 (breathable oxygen) and O3 (ozone), and nitrogen forming N2 (the normal nitrogen in air). In fact, most of the oxygen would already be double-bonded O2 and nitrogen triple-bonded N2, which they're very happy to be. It would take a spark to break them and get them to bond with the hydrogen.

+3
Level 85
Jun 8, 2023
As for what would happen if you were in a room with all of those gases: you would die. You would quickly succumb to the chlorine and fluorine gases, which are extremely reactive and would burn your skin and lungs with each breath, as they form powerful acids in the water in your cells. The helium would cause you to scream like a member of The Chipmunks during your rapid, tragic death, and the radon would make your corpse radioactive, necessitating a lead coffin.
+1
Level 52
Feb 21, 2023
no way i forgot nitrogen