Biology

chromium (Cr)

Term: chromium (Cr)

Literally meaning: ?petaining to color?

Origin: Anc Greek

?????/chroma(=color) > ??????/chripto(=touch or anoint)

Coined/History

The element was discovered in 1797 by French chemist Nicolas .L. Vauqkelin(1763-1797) in the mineral corocoite (Siberian red lead) and named because of its many different colors.

Definition

Chromium in a chemical element with atomic number 24 and atomic mass 51.9961. It is characterized by corrosion resistance and hardness and it is used to harden steel.

- Uranium (u)
Term: uranium (U)Literally meaning: ?pertaining to planet Uranus ?Origin?'õ???ü?/uranos(=heaven, sky)???/ano (=above)+????/oros(=mountain)The name was given after the recently dicovered planet Uranus. The planet name was given by German astronomer...

- Iridium (ir)
Term: iridium (Ir)Literally meaning: ?pertaining to rainbow?Origin=é??? (gen ??????)/iris(=rainbow)>????/ero(=announce, say)Iridium element named because of variety of colors which it gives while dissolving in marine acid. Coined/History ...

- Lanthanum (la)
Term: lanthanum (La)Literally meaning: ?pertaining to hidden?Origin: ???????/lanthano(= to be hidden, to escape notice) .The element called lanthanum because it is ?hidden? in rare minerals. Coined/History Lanthanum was isolated in the mineral...

- Molybdenium (mo)
Term: molybdenium (Mo)Literally meaning: ?pertaining to lead?Origin: Anc Greek????????/molybdos(=lead)Coined/History In 1778, Swedish chemist Carl Wilhelm Scheele (1742-1786) claimed that molybdena (MoS2) was an ore of a distinct new element,...

- Bromine (br)
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Biology