group 6

The elements of group 6 (formerly called group VIb in North America and Via in Europe), include the transition metals chromium, molybdenum, and tungsten, and the transactinide seaborgium. Due to the existence of d electron levels, these elements, like all transition metals, tend to form colored compounds, possess variable valences, and form a great number of inorganic complexes in which the coordinate bonds are formed to the atom or ion. The atoms of the elements in group 6 have six valence electrons.