ATOMS CAN BE IDENTIFIED BY THE LIGHT THEY EMIT

Elements heated by a flame glow their characteristic color. This is commonly called a flame test and is used to test for the presence of an element in a sample. When viewed through a spectroscope, the color of each element is revealed to consist of a pattern of distinct frequencies known as an atomic spectrum. 

A portion of the acornic spectrum for hydrogen. These frequencies are higher than those of visible light, which is why they are not shown in color. 

Was this your answer Aim a well-built spectroscope at the star, and study its spectral patterns. In the late 1800s, this was done with our own star, the sun. Spectral patterns of hydrogen and some other known elements were observed, in addition to one pattern that could not be identified. Scientists concluded that this unidentified pattern belonged to an element not yet discovered on Earth. They named this element helium after the Creek word for sun, helios. 

Second spectral line + 4.6 X 1014 Hz Third spectral line 6.2 X 1014 Hz 

Purchase some rainbow glasses from a nature, toy, or hobby store. The lenses of these glasses are diffraction gratings. Looking through them, you will see lig ht separated into its color components. Certain light sources, such as the moon or a car s headlights, are separated into a continuous spectrum—in other words, all the colors of the rainbow appear in a continuous sequence from red to violet. 

Setxmd spectral line + 4.6 x 10 IIz Fhird spcaial line 6.2 xio Hz 

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