| 2025-04-19 | B in chemistry class |
| 2021-10-10 | The Fifth Element |
| 2020-07-05 | First of the metalloids |
| 2020-07-03 | Element that burns with a green flame |
| 2019-05-08 | Element before carbon on the periodic table |
| 2015-06-26 | Element in Pyrex |
| 2015-01-22 | Chemical element |
| 2013-12-06 | B, to scientists |
| 2013-06-21 | Element with a low atomic number that is not found naturally on Earth |
| 2012-08-08 | *Element in the cleanser 20 Mule Team |
| 2011-12-04 | Element used for shielding nuclear reactors |
| 2010-10-30 | Group 13 member, in chemistry |
| 2010-03-13 | Ulexite is rich in it |
| 2008-10-05 | The fifth element |
| 2006-11-17 | A metalloid |
| 2004-10-31 | Element #5 |
| 2004-10-18 | Element with the symbol B |
| 1997-06-07 | Element in colemanite |
| 1996-02-24 | Kernite component |
| 1995-08-04 | Fifth element |
| 1994-01-14 | Element #5 |