| 1-50 of 270Flashcard sets with a 'ru' term meaning 'ruthenium' |
| # | Title | Terms | Date |
| 1 | The Periodic Table of the Elementsby Yakeyglee | 118 terms | February 8, 2007 |
| 2 | Chemistry - All 118 termsby AM11105 | 118 terms | July 3, 2009 |
| 3 | Hughes Sp-Elements 1-45by NOS23 | 45 terms | October 4, 2009 |
| 4 | First 50 Elements of the Periodic Tableby DrummerAmazing | 56 terms | September 30, 2008 |
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| 5 | Elements 1-56,78-86,88,92by stevekrouse | 67 terms | August 30, 2009 |
| 6 | LOL- All of them (1-60) HaVe FuNby jjisballin | 59 terms | November 3, 2009 |
| 7 | Periodic Tableby Katrian | 118 terms | February 16, 2009 |
| 8 | Elements 41-60by bab2011 | 20 terms | September 28, 2008 |
| 9 | Elements (Gallium-Rhodium)by T-Goss | 30 terms | October 3, 2009 |
| 10 | Chemistry Elements Cardsby kivihalpern | 109 terms | January 11, 2009 |
| 11 | Periodic Table: abbr + nameby mstreffon | 118 terms | December 17, 2007 |
| 12 | Elementsby Amazzolini | 77 terms | November 1, 2008 |
| 13 | Elements of the Periodic Tableby abrown25 | 118 terms | April 29, 2008 |
| 14 | Chemistry: Element Abreviatonsby mssherwood | 84 terms | August 18, 2009 |
| 15 | Elementsby JWCusick18 | 64 terms | August 30, 2009 |
| 16 | Periodic Tableby charlatte | 53 terms | October 12, 2009 |
| 17 | Elements 1-51by kivihalpern | 51 terms | January 14, 2009 |
| 18 | Periodic Table of Elementsby ScoutFinch | 56 terms | October 15, 2009 |
| 19 | All Elementsby catie_schulte | 109 terms | March 29, 2008 |
| 20 | Periodic Table 1-57, 71-89, 92, 94by ericlifland | 78 terms | August 21, 2009 |
| 21 | Periodic Table of Elementsby mmstwiggy | 115 terms | October 19, 2008 |
| 22 | Periodic tableby schlenerjen | 100 terms | September 24, 2009 |
| 23 | Element List 1-112by sonofgodhc | 112 terms | September 17, 2009 |
| 24 | Science Chemical Symbolsby bridgey6395 | 115 terms | December 3, 2008 |
| 25 | Elements 25 - 48by Buckley1923 | 24 terms | November 4, 2009 |
| 26 | Periodic Tableby AG10176 | 73 terms | August 22, 2008 |
| 27 | chemby garvey56 | 55 terms | October 14, 2009 |
| 28 | Chemical Elementsby KrisTWIN | 75 terms | August 7, 2009 |
| 29 | chemby marwil93 | 56 terms | September 9, 2009 |
| 30 | Elements 31-38, 39-56, 71-86by proschien1 | 42 terms | November 3, 2008 |
| 31 | Elements #41-60by strohlama | 10 terms | September 27, 2009 |
| 32 | Periodic Table of Elements #1-55by shereen394 | 55 terms | September 12, 2009 |
| 33 | The The First 50 elementsby ngc1994 | 50 terms | March 21, 2008 |
| 34 | The Periodic Tableby nhagee | 75 terms | November 7, 2009 |
| 35 | Periodic Tableby jereb | 118 terms | September 11, 2008 |
| 36 | Elements 1-100by strohlama | 100 terms | October 29, 2009 |
| 37 | Arleth's Element Quizby imthediscospanic | 88 terms | October 10, 2008 |
| 38 | periodic table of elementsby moniquelizardo | 69 terms | October 30, 2009 |
| 39 | Elements 37-54by usafa_nut | 22 terms | August 26, 2008 |
| 40 | elementsby kumarankandath | 82 terms | September 10, 2009 |
| 41 | 41-50 elementsby dasilvaadr | 10 terms | October 1, 2009 |
| 42 | First 54 Elementsby prusjk | 54 terms | August 29, 2009 |
| 43 | Periodic Elements 31-60by Jcarg01 | 30 terms | September 30, 2008 |
| 44 | Elementsby jsmith94 | 60 terms | September 24, 2009 |
| 45 | Periodic table 31-60by Caio | 30 terms | November 4, 2009 |
| 46 | Chemistry Elementsby alacton | 81 terms | August 26, 2009 |
| 47 | 1-118 Elementsby clairetucker | 118 terms | March 19, 2009 |
| 48 | elementsby lalaking | 54 terms | September 16, 2009 |
| 49 | Chem151by jstolley | 81 terms | August 4, 2009 |
| 50 | Periodic Tableby someonerndom | 112 terms | August 17, 2009 |