Group 6 element
Group 6, numbered by IUPAC style, is a group of elements in the periodic table. Its members are chromium (Cr), molybdenum (Mo), tungsten (W), and seaborgium (Sg).[1] These are all transition metals and chromium, molybdenum and tungsten are refractory metals.
Group 6 Element Media
The red colour of rubies is from a small amount of chromium(III).
References
- ↑ "Group 6: Transition Metals". Chemistry LibreTexts. 2013-10-02. Retrieved 2020-12-07.