
Group 12 elements
Group 12 of the periodic table contains these elements: Zinc, Cadmium, Mercury, Copernicium.
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| No. | Symbol | Element | Atomic weight (u) | Density (g/cm³) | Melting point (K) | Boiling point (K) | Electronegativity | Discovered |
|---|---|---|---|---|---|---|---|---|
| 30 | Zn | Zinc | 65.382 | 7.14 | 692.68 | 1180 | 1.65 | 1000 BC |
| 48 | Cd | Cadmium | 112.414 | 8.65 | 594.22 | 1040 | 1.69 | 1817 |
| 80 | Hg | Mercury | 200.592 | 13.534 | 234.321 | 629.88 | 2 | 1500 BC |
| 112 | Cn | Copernicium | 285 | 23.7 | - | 3570 | - | 1996 |