What is the combining ratio of potassium with bromine?

 1: 1

Explanation:

An ionic bond is formed when an element completely transfers its valence electron to another element. This bond is formed between a metal and a non-metal.

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.  

Here potassium forms a cation ion by loss of one electron and bromine forms an anion by gain of one electron.Thus one combine with one to form neutral .

um i think it might be a car?

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

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