نوفمبر 24th, 2013

 

Atomic Spectrum of Hydrogen

when an electrical discharge is passed through a sample of hydrogen gas at low pressure, a pinkish glow is observed. This glow can be examined using a simple spectroscope. A number of separate lines can be observed. It is important to realize that each line in the spectrum corresponds to an electron’s changing from one energy level to another.

When electrical discharge is passed through hydrogen gas, energy is…

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Chemical Nomenclature

Chemical nomenclature is the system of names that chemists use to identify compounds precisely. The systematic method of naming compounds is vital to the study of chemistry, because when a new substance is formulated, it must be named in order to distinguish it from all other substances.

Using this systematic method of naming compounds, the positive part is named and written first, followed by the negative part. The…

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