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Astronomers have used spectroscopes to determine elements in stars. Relate the flame test lab to the way astronomers study the make up of a star. PLEASE HELP i need the answer to that question

2007-02-10 08:51:30 · 5 answers · asked by gabsta 2 in Science & Mathematics Astronomy & Space

5 answers

The flame test works by heating up the elements until their outer electrons have enough energy to jump up to higher, empty energy levels by absorbing thermal energy. When they fall back to their "home" energy levels, the excess energy has to go somewhere, in this case light energy at certain specific colors. If we measure the wavelength of the colors emitted by elements, we can use this as a tool. If certain colors are seen, then certain elements must be present.

The same is true for the elements in the outer layers of a star or in its atmosphere, but with one difference: instead of glowing brighter at these colors, the star seems to be darker at these colors. This is because we a seeing this relatively dim light against the backdrop of the really, really bright star.

As the light from the star (going outwards, like towards you), it is absorbed and re-radiated by these elements, but in all directions. The effect is that in a spectroscope, the spectrum appears as a bright rainbow with a lot of dark lines of varying thicknesses.

2007-02-10 09:18:15 · answer #1 · answered by Stephen S 3 · 0 0

I get 80% in My Physics Coursework Assignment, So i am quite good at Science.


Ok So The flame test works by heating(warming) the elements until their outer electrons have just enough energy to jump up higher and move alittle faster(kinetic energy).So now the empty energy levels by absorbing thermal energy. When they fall back to their natural levels of energy, the excess energy has to go somewhere In such cases as this, the light energy has certain specific colors. If you measure the wavelength of the colors emitted by elements, we can use this as a method of showing certain element.Basicaly If certain colors are seen, then certain elements must be present.

2007-02-10 17:24:55 · answer #2 · answered by Miss LaStrange 5 · 0 0

I am good with science. Certain elements burn different colors. For example hydrogen burns orange and sulfer yellow (I think). The realy cool thing is sodium burns green. Get a burner and some raw elements and do some expirementing!!

2007-02-10 17:17:51 · answer #3 · answered by Jenna L 2 · 0 1

when differant elements burn they give off different colors of light wether its in a lab or in a sun the same color is produced.this is over simplified becuse a sun can have many eliments in it at the same time.

2007-02-14 13:53:53 · answer #4 · answered by Tony N 3 · 0 0

Albert Einstein

2007-02-10 16:55:38 · answer #5 · answered by angela 2 · 0 2

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