| Dubnium | Db | 105 | Transition metal | Dubna, Russia | 5 | 7 |  |  | -29.30 |  |  |  |  | 0.00 | 
          
                | Copper | Cu | 29 | Transition metal | English word (Latin cuprum) | 11 | 4 | 63.55 | 0.00 | 8.96 | 1357.77 | 2835.00 | 0.39 | 1.90 | 60.00 | 
          
                | Caesium | Cs | 55 | Alkali metal | the Latin caesius, 'sky blue' | 1 | 6 | 132.91 | 0.00 | 1.87 | 301.59 | 944.00 | 0.24 | 0.79 | 3.00 | 
          
                | Chromium | Cr | 24 | Transition metal | the Greek chroma, 'color' | 6 | 4 | 52.00 | 0.00 | 7.15 | 2180.00 | 2944.00 | 0.45 | 1.66 | 102.00 | 
          
                | Cobalt | Co | 27 | Transition metal | the German word Kobold, 'goblin' | 9 | 4 | 58.93 | 0.00 | 8.86 | 1768.00 | 3200.00 | 0.42 | 1.88 | 25.00 | 
          
                | Copernicium | Cn | 112 | Post-transition metal | Nicolaus Copernicus, astronomer | 12 | 7 |  |  | -23.70 |  | 357.00 |  |  | 0.00 | 
          
                | Curium | Cm | 96 | Actinide | Pierre Curie, a physicist, and Marie Curie, a physicist and chemist, named after great scientists by analogy with gadolinium |  | 7 |  |  | 13.51 | 1613.00 | 3383.00 |  | 1.28 | 0.00 | 
          
                | Chlorine | Cl | 17 | Reactive nonmetal | the Greek chloros, 'greenish yellow' | 17 | 3 | 35.45 |  | 0.00 | 171.60 | 239.11 | 0.48 | 3.16 | 145.00 | 
          
                | Californium | Cf | 98 | Actinide | California, where the element was first synthesized |  | 7 |  |  | 15.10 | 1173.00 | -1743.00 |  | 1.30 | 0.00 | 
          
                | Cerium | Ce | 58 | Lanthanide | the then recently discovered asteroid Ceres, considered a planet at the time |  | 6 | 140.12 | 0.00 | 6.77 | 1068.00 | 3716.00 | 0.19 | 1.12 | 66.50 |