The group 1 elements react quickly with oxygen in the air at room temperature. Most transition elements react slowly, or not at all, with oxygen at room temperature. Some transition metals react ...
Chromium Transition elements 1890°C 7.19 g/cm 3 Manganese Transition elements 1240°C 7.20 g/cm 3 Iron Transition elements 1538°C 7.87 g/cm 3 Cobalt Transition elements 1492°C 8.90 g/cm 3 Nicke ...