How can understanding atomic light help astronomers determine what planets are composed of?
Solved
Show answers
More tips
- G Goods and services How to sew a ribbon: Tips for beginners...
- L Leisure and Entertainment How to Learn to Draw Graffiti: Tips for Beginners...
- F Family and Home How to Remove Tar Stains: Tips and Recommendations from Experts...
- F Family and Home How to Remove Fading from Clothes: Tips and Tricks...
- S Sport How to Do a Jumping Split...
- H Health and Medicine How Did Inna Lose Weight on Dom 2?...
- F Family and Home How to Properly Fold Napkins in a Napkin Holder?...
- F Food and Cooking How to Set Up Ventrilo - The Ultimate Guide...
- S Science and Technology How to Make a Homemade Smoker: The Ultimate Guide...
- A Auto and Moto Battle for the Relocation of The Cherkizovsky Market: Who Won?...
Answers on questions: Chemistry
- C Chemistry Ineed to know all of those questions...
- C Chemistry Infer a quantitative measurement that can be made from the scene shown. be sure to use at least one complete content related sentence....
- C Chemistry When copper oxide is reacted with sulfuric acid, the acid is often gently heated. This is done in order to:...
- C Chemistry Write word equations for this reaction Hydrogen peroxide is exposed to light and breaks down into water and oxygen gas....
- C Chemistry A student measure the mass the volume of a piece of aluminum. The aluminums mass is found to be 25.6 grams and the volume is found to be 9.1 cubic centimeters. What is...
- C Chemistry How many grams are in .12 moles of bel2...
- C Chemistry 1. In case of emergency when using acetone, what phone number could you call?...
- H History What were the effects of World War I on the United States? Select all the correct answers. strong belief in international relations disillusion with progressive reforms...
- M Mathematics Simplify completely quantity x squared plus 4 x minus 5 over quantity 5 x squared minus 8 x plus 3 times quantity 20 x minus 12 over x squared minu. 4 over quantity x...
- S Social Studies What is the difference of a confident and an arrogant person?...
Ответ:
The most common method astronomers use to determine the composition of stars, planets, and other objects is spectroscopy. This process utilizes instruments with a grating that spreads out the light from an object by wavelength. This spread-out light is called a spectrum. Every element has a unique fingerprint that allows researchers to determine what it is made of.
The fingerprint often appears as the absorption of light. Every atom has electrons, and these electrons like to stay in their lowest-energy levels. But when photons carrying energy hit an electron, they can push it to higher energy levels. This is absorption, and each element’s electrons absorb light at specific wavelengths related to the difference between energy levels in that atom. But the electrons want to return to their original levels, so they don’t hold onto the energy for long. When they emit the energy, they release photons with exactly the same wavelengths of light that were absorbed in the first place. An electron can release this light in any direction, so most of the light is emitted in directions away from our line of sight. Therefore, a dark line appears in the spectrum at that particular wavelength.
Because the wavelengths at which absorption lines occur are unique for each element, astronomers can measure the position of the lines to determine which elements are present in a target. The amount of light that is absorbed can also provide information about how much of each element is present.
Ответ:
17.5, next is 1.07, last one is 0.570
Explanation: