We are going to make a simple approximation of the number of atoms in the universe. 1. Assume all the atoms in the universe are hydrogen. (In actual practice, over 75% of the atoms in the universe are hydrogen.) 2. Assume the sun is a typical star (made of pure hydrogen) has a density of 1.4 g/cm3 and is a sphere with a radius of 7.0*108m 3. Assume that there are 100 billion stars in our Milky Way galaxy that are identical to our sun. 4. Assume that there are 10 billion galaxies in the universe identical to our Milky Way galaxy. How many atoms are there in the universe?
We are going to make a simple approximation of the number of atoms in the universe. 1. Assume all the atoms in the universe are hydrogen. (In actual practice, over 75% of the atoms in the universe are hydrogen.) 2. Assume the sun is a typical star (made of pure hydrogen) has a density of 1.4 g/cm3 and is a sphere with a radius of 7.0*108m 3. Assume that there are 100 billion stars in our Milky Way galaxy that are identical to our sun. 4. Assume that there are 10 billion galaxies in the universe identical to our Milky Way galaxy. How many atoms are there in the universe?
Chapter3: Atoms And Elements
Section: Chapter Questions
Problem 57E: The introduction to this chapter states that everything is made of atoms, including ourselves. Does...
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We are going to make a simple approximation of the number of atoms in the universe.
1. Assume all the atoms in the universe are hydrogen. (In actual practice, over 75% of the atoms in the universe are hydrogen.)
2. Assume the sun is a typical star (made of pure hydrogen) has a density of 1.4 g/cm3 and is a sphere with a radius of 7.0*108m
3. Assume that there are 100 billion stars in our Milky Way galaxy that are identical to our sun.
4. Assume that there are 10 billion galaxies in the universe identical to our Milky Way galaxy.
How many atoms are there in the universe?
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