Although Mendeleev's periodic table was still almost a century away at this time ... and finally removed the compounded oxygen by heating with carbon - leaving behind elemental chromium. The name for ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

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 ...

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.

But how many of these elements do you know? Test your knowledge and compete with other Live Science readers to see who can ...

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 ...

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