The sense development in English is from cry to lamentation to grief. Meaning charge, oversight, protection is attested c.1400, the sense in care of in addressing. To take care of take in hand, do is from 1580s.
Chromium is a chemical element with symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard and brittle metal which takes a high polish, resists tarnishing, and has a high melting point.rivalent chromium (Cr(III)) ion is possibly required in trace amounts for sugar and lipid metabolism, although the issue remains in debate. In larger amounts and in different forms, chromium can be toxic and carcinogenic.
Chromium is a constituent of several green, yellow, orange and red pigments. The name (from the Greek chroma or color) refers to the large color span of its compounds, noted when chromium was discovered in the mineral ore crocoite by Nicolas-Louis Vauquelin in 1797.