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How do emission and absorption spectrums tell us about the composition of objects in our universe?
Danielladino12
Each chemical element has a specific emission or absorption spectrum.
Minerva Orn
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Are there atoms in the universe?
The whole universe is made up of atoms but the exact composition of the black matter (blackHole) is not known
Which of these facts is the best supporting evidence that the universe is expandingThe stars vary in chemical composition The galaxies can spin to form eddies. The universe is filled with galaxies of?
None of them. The best evidence is the redshift.
What kind of scientist studies the universe and the planets galaxies stars and other objects within it?
Astronomers and physicists.
What happens to the atoms of metal when they are heated in a Bunsen flame?
A heated solid element that does not change state, has molecular bonds that "flex", and electrons that emit light similar to a black body radiation. A solid heated to become a liquid, has molecular bonds that alter significantly, and the liquid starts to show stronger emission lines corresponding to the orbitals of the element itself, as well as some component of black body emission. A liquid heated to a gas shows strong elemental emission lines, with intensities of the various characteristic frequencies approximating the black body curve. A gas that is heated into plasma (assuming that is what you mean by flames), one or more electrons are lost from their orbitals, and drift free between charged nucleii. The "missing normal mass" in the Universe has been located and it is drifting between galaxies. It is oxygen with 5 missing electrons, based on its absorption / emission lines... which is a very hot gas. The "flame" or glow one exepcts comes from recombination (electrons entering orbitals), and this does not happen in deep space.
Why have the asronomers changed their theories about the universe over time?
Technological advances mean that astronomers are able to see more and more detail in the universe - and better understand it's composition. For example - it was originally thought that the Earth was the centre of the universe... we now know, through the invention of the telescope etc - that this is not so.
What does astrobiology deal with?
Astrobiology deals with the origin of the universe, the universe's composition, future of life in the universe, distribution of the universe, etc.
How are spectrums used to study?
Astronomers use the light spectrum of distant objects to determine the chemical composition of those objects. Each element on the period table gives off a different spectrum, and by looking through a spectrometer an astronomer can read the spectrum and figure out what that object is made up of to gain better understanding of our universe.
What is the composition of committees in the House of Representatives?
"Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe."
Are there atoms in the universe?
The whole universe is made up of atoms but the exact composition of the black matter (blackHole) is not known
What is the composition of the universe?
On the Lighter Side: Toccatta and Fugue in D minor
How do astronomers know that hydrogen is present in almost every star in the universe?
They detect the absorption lines consistent with hydrogen.
Why do stars have hydrogen as the major element in their composition?
Because hydrogen is the most abundant element in our universe.
What types of nebulae exist in the universe?
The types of nebulae that exist in the universe include bright, dark and emission nebulae. Different nebulae are often named for their shape. More information can be found on "Sea and Sky".
Who is the strongest character in the dragon ball universe unaided by fusion or absorption?
just goku himself, in super saiyan forms.
Why is hydrogen emission useful in mapping the arms of the milky way?
Because hydrogen is the most common element in the universe and also it has a spectral emission line in the microwave radio part of the spectrum making it easier to track with a radio telescope.
Which of these facts is the best supporting evidence that the universe is expandingThe stars vary in chemical composition The galaxies can spin to form eddies. The universe is filled with galaxies of?
None of them. The best evidence is the redshift.
What does the subatomic particle described in the article do?
Subatomic particles are responsible for the composition of matter. They allow our universe to be recognizable as we see it today.
