
Group 7 elements
Group 7 of the periodic table contains these elements: Manganese, Technetium, Rhenium, Bohrium.
Browse by
| No. | Symbol | Element | Atomic weight (u) | Density (g/cm³) | Melting point (K) | Boiling point (K) | Electronegativity | Discovered |
|---|---|---|---|---|---|---|---|---|
| 25 | Mn | Manganese | 54.938 | 7.21 | 1519 | 2334 | 1.55 | 1774 |
| 43 | Tc | Technetium | 98.9062 | 11 | 2430 | 4538 | 1.9 | 1937 |
| 75 | Re | Rhenium | 186.207 | 21.02 | 3459 | 5869 | 1.9 | 1925 |
| 107 | Bh | Bohrium | 270.133 | 37.1 | - | - | - | 1981 |