Although Mendeleev's periodic table was still almost a century away at this ... compounded oxygen by heating with carbon - leaving behind elemental chromium. The name for this new element was debated ...

The colors of rubies and emeralds are so striking that they define shades of red and green – ruby red and emerald green. But ...

Chromium is a metal in group VIB of the periodic table with atomic number 24, an atomic weight of 51.996, and a density of 7.19. It has a melting temperature of 1875 C. The electronic configuration ...

Both rubies and emeralds are minerals, which is a type of rock with a consistent chemical composition and a highly ordered ...

Chromium is a metal for the modern age with a bright future. It is one of the more durable metals available, and is an ...

One feature of compounds made with transition metals is their intense colour. There are many examples in nature, including ...

Atomic number 28, atomic weight 58.71. Chromium (Cr): Chromium, a metallic element, is found in the earth's crust. It is used in the production of stainless steel to make the steel resistant to ...

ruled against this name on the grounds that no element had ever been given the full name of a scientist. Instead they proposed bohrium, which became the officially recognised name in 1997. In the ...

and all the elements in group 0 are unreactive non-metals. The zigzag, staircase, line in the diagram of the periodic table above separates the metals, on the left, from non-metals, on the right.