Can you name the element symbols which have the same two letters in opposite order?

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Reversible Elements Quiz

by WyvernSabres

Created Apr 3, 2010 in Science
Featured Aug 30, 2010
Game Plays 19,690

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Archived comments: show them

	matt0028:	Aug 30th, 2010 at 16:15 GMT		9 points
	Having them in alphabetical order makes it too easy to guess, I think. Randomizing their order might help eliminate this.

	Comix8:	Aug 30th, 2010 at 16:17 GMT		1 point
	Agree with matt. After I got through the ones I could come up with, it was too easy to see what the other few might be by the alphabetical listing. Maybe list them by the lowest atomic number instead.

	CradleOfMexicans:	Aug 30th, 2010 at 16:42 GMT		8 points
	yea, this quiz is WAAAAY too easy to guess. the player should be required to type on the entire name of the elements, with a longer time limit of course...

	featherfish81:	Aug 30th, 2010 at 17:03 GMT		1 point
	At least the beginning of the alphabet was easy to guess, once I had a few in. There were a lot before E, so it was easy to just trial and error those. Maybe that's part of the reason why the last one was the last - it took too long to get to M. Of course, people could do it anyway even without them being in alphabetical order, so maybe it doesn't make a difference either way.

	milkmeister:	Aug 30th, 2010 at 17:52 GMT		1 point
	Yeah but difference is that with them being in alphabetical order, you know that the second letter has to be after the first one in the alphabet, which you wouldn't know if they were in random order.

	WyvernSabres:	Aug 30th, 2010 at 18:02 GMT		1 point
	I think that's a fair comment on the alphabetical order: regrettably nobody mentioned this while I was still able to edit it! I wasn't sure whether it'd be considered difficult or easy, so I thought that bit of a clue might be appropriate.

	Koltrane:	Aug 30th, 2010 at 21:58 GMT		3 points
	Any quiz with the periodic table gets five stars from me. Great job!

	josake:	Aug 30th, 2010 at 22:33 GMT		-1 points
	I think there's too much time. I went through almost every element. But it was a good quiz.

Symbols	Names
	Astatine & Tantalum
	Silver & Gallium
	Francium & Rutherfordium
	Argon & Radium
	Meitnerium & Thulium
	Erbium & Rhenium

	MCDD:	Aug 31st, 2010 at 13:20 GMT		1 point
	Only on Sporcle will you find someone who misses silver but gets meitnerium (I must really be on this site too much);)

	Firefoot:	Sep 1st, 2010 at 20:46 GMT		3 points
	Uuu should be a bonus answer.

	PK9:	Sep 29th, 2010 at 21:51 GMT		2 points
	I gave up thinking of two-letter element abbreviations halfway through and just started systematically trying all two-letter combinations. If I had done it from the start I think I could have finished the quiz.

	zachman1221:	Oct 15th, 2010 at 23:12 GMT		0 points
	how did you make it to have two answers

	WyvernSabres:	Oct 18th, 2010 at 17:21 GMT		2 points
	@zachman1221: An example of an answer (as entered on the data page) is "Ac & Ca/Ac/Ca". This means Sporcle displays as the answer the one before the first / but either of the other answers is accepted as an alternative.

	HippieSlay:	Sep 15th, 2011 at 18:40 GMT		-1 points
	Cesium*

	WyvernSabres:	Sep 16th, 2011 at 18:58 GMT		3 points
	IUPAC spells it caesium. Since you only need the chemical symbol, it doesn't matter whether you agree or not, you get credit for the answer anyway.

	CherryBomb50:	Oct 24th, 2011 at 23:22 GMT		1 point
	Too bad Antimony has no reverse