Chemical element List of the 118 known chemical elements List of the 118 known chemical elements

| Atomic_no_ | Name_ | Symbol | Group_ | Period | Block | State_at_STP | Occurrence | Description_ |
|---|---|---|---|---|---|---|---|---|
| 44 | Ruthenium | Ru | 8 | 5 | d | Solid | Primordial | Transition metal |
| 45 | Rhodium | Rh | 9 | 5 | d | Solid | Primordial | Transition metal |
| 46 | Palladium | Pd | 10 | 5 | d | Solid | Primordial | Transition metal |
| 47 | Silver | Ag | 11 | 5 | d | Solid | Primordial | Transition metal |
| 48 | Cadmium | Cd | 12 | 5 | d | Solid | Primordial | Transition metal |
| 49 | Indium | In | 13 | 5 | p | Solid | Primordial | Metal |
| 50 | Tin | Sn | 14 | 5 | p | Solid | Primordial | Metal |
| 51 | Antimony | Sb | 15 | 5 | p | Solid | Primordial | Metalloid |
| 52 | Tellurium | Te | 16 | 5 | p | Solid | Primordial | Metalloid |
| 53 | Iodine | I | 17 | 5 | p | Solid | Primordial | Halogen |
| 54 | Xenon | Xe | 18 | 5 | p | Gas | Primordial | Noble gas |