CHROME
Be Armen mine ,we take out gold at near center of Sivas.we have to fields way of gold.we have experience of 17 years and we take product well..
Cadmium was found in 1761 by Johann Gottlob Lehmann.Cadmium's colour is orange-red mineral.This compound is lead chromete.(PbCrO4).in 1770,this compound can use the painting.this event was discovered by Peter simon palas. lead chromote react with HCl.
Chromium is steel gray,lustrous,hard,metallic and takes a high polish.İt compounds are toxic.İt is found as chromite ore.siberion red lead(crocoite,PrCrO4)is a chromium ore prized as a red pigment for oil paint.For each compound and where possible a formal oxidation number for each element is given but the usefulness of this number is limited,especially so for p-block elements in particular.Based upon that oxidation number an electronic configuration is also given but note thatfor more exotic compounds you should view this as a guide only(Cr2O3). This section lists some binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and some other compounds of chromium. For each compound, a formal oxidation number for chromium is given, but the usefulness of this number is limited for p-block elements in particular. Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only. The term hydride is used in a generic sense to indicate compounds of the type M xH y and not necessarily to indicate that any compounds listed behave chemically as hydrides.
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