| Moscovium | Mc | 115 | Unknown chemical properties | Moscow Oblast, Russia, where the element was first synthesized | 15 | 7 |  |  | -13.50 | -700.00 | -1400.00 |  |  | 0.00 | 
          
                | Livermorium | Lv | 116 | Unknown chemical properties | Lawrence Livermore National Laboratory (in Livermore, California) which collaborated with JINR on its synthesis | 16 | 7 |  |  | -12.90 | -709.00 | -1085.00 |  |  | 0.00 | 
          
                | Lutetium | Lu | 71 | Lanthanide | Lutetia, the Latin name for Paris |  | 6 | 174.97 | 0.00 | 9.84 | 1925.00 | 3675.00 | 0.15 | 1.27 | 0.80 | 
          
                | Lawrencium | Lr | 103 | Actinide | Ernest O. Lawrence, physicist |  | 7 |  |  | -15.60 | -1900.00 |  |  | 1.30 | 0.00 | 
          
                | Lithium | Li | 3 | Alkali metal | the Greek lithos, 'stone' | 1 | 2 | 6.94 | 0.00 | 0.53 | 453.69 | 1560.00 | 3.58 | 0.98 | 20.00 | 
          
                | Lanthanum | La | 57 | Lanthanide | the Greek lanthanein, 'to lie hidden' | 3 | 6 | 138.91 | 0.00 | 6.15 | 1193.00 | 3737.00 | 0.20 | 1.10 | 39.00 | 
          
                | Krypton | Kr | 36 | Noble gas | the Greek kryptos, 'hidden' | 18 | 4 | 83.80 | 0.00 | 0.00 | 115.79 | 119.93 | 0.25 | 3.00 | 0.00 | 
          
                | Potassium | K | 19 | Alkali metal | New Latin potassa, 'potash' (kalium in Latin) | 1 | 4 | 39.10 | 0.00 | 0.86 | 336.53 | 1032.00 | 0.76 | 0.82 | 20900.00 | 
          
                | Iridium | Ir | 77 | Transition metal | Iris, the Greek goddess of the rainbow | 9 | 6 | 192.22 | 0.00 | 22.56 | 2719.00 | 4701.00 | 0.13 | 2.20 | 0.00 | 
          
                | Indium | In | 49 | Post-transition metal | indigo | 13 | 5 | 114.82 | 0.00 | 7.31 | 429.75 | 2345.00 | 0.23 | 1.78 | 0.25 |