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The currently recognized mass of the Earth is kg
The average density of the Earth is about half that of iron;
The atomic mass of iron is: The mass of 1 iron atom is.
The number of atoms on Earth is approximately
kg pcs.
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To the 23rd power, this is the amount of one mole. That is, 12 grams of carbon has so many atoms.
Think of this as the atoms of an object the size of a ping-pong ball.
Because the earth is compared to a ping-pong ball, just like a ping-pong ball is compared to an atom.
The total number of atoms on the earth, multiplied by the 23rd power, I think it's about the same.
It's about 6x10 to the power of 48.
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Suppose that the proton mass m1, the electron mass m2, and the earth's mass m, then suppose that the earth is in electrical equilibrium, the number of protons is the same as the number of electrons, and there are m (m1+m2) protons on the earth, and then suppose that there are x elements on the earth, and the number of protons required for each element is n1, n2, ,..nx,n1+n2+..nx=n;Suppose then that the mass of each element on Earth is k1, k2,..
kx,k1+..kx=m, the k1 element has k1 n1 (m1+m2) atoms, and kx has the element.
kx nx(m1+m2) atoms, the total number of atoms is summed.
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Nuclear fission will lead to an increase in atoms, and nuclear fusion will lead to a decrease in atoms, and the whole is in a state of change.
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Sir, this can't, all the heavy atoms on earth are decaying all the time.
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There are two types of it: regular or irregular.
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You might as well ask how many stars there are in the universe.
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The universe is infinite both in terms of the microscopic and the macroscopic aspects, and the microscopic is made up of molecules, which in turn are made up of atoms, and atoms are made up of nuclei.
and electrons, the nucleus of the atom is made up of neutrons and protons, which in turn are made up of quarks.
Composition ,......On a macro scale, the Earth and the Moon make up the Earth-Moon system, and the Earth and other planets make up the Solar System.
The solar system and other galaxies.
There are constituent galaxies. , then there is no branch to the earth on the earth is quite an atomic nucleus, the moon.
Equivalent to an electron, the Earth is an atom in the body of a giant. In other words, the atom is equivalent to our earth, and there are many "earthlings" living in the atom. But the idea was to think of the sun as a nucleus or other baryon (after all, it can't be exactly as fierce or scum), the planet as an electron or other lepton, or the whole galaxy as a particle (quarks don't have to be indivisible — the whole universe is almost a very uneven air mass).
But this assumption is meaningless, because if the scale difference is too large, it is impossible to observe, even if the technology is advanced, it is useless, this observation limit seems to be 10 more than 40 squares to minus 40 squares, I can't remember clearly, the unit is of course meters At the same time, if it is larger than this scale, its influence will also disappear, for example, if the earth is really part of a giant, then no matter what the influence of this giant is, whether it is life or death, it will not change our universe in any way...... So, do you think this issue is still worth our attention?
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There are two identical atoms in the world. But in general, it is impossible for two particles to exist at the same time and occupy the same geographical location.
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There are no two identical atoms in the world, and atoms are different in shape and structure.
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It exists, and it's in the microcosm. So I'm a big believer in having these two atoms in the same thing, and I also believe in the existence of this thing.
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Of course, there are no two identical atoms in the world, and there will be no such thing.
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According to scientists, the earth is estimated to be 4.6 billion years old, which is an astronomical number compared to humans, but it may be just a teenager compared to other cosmic celestial bodies, since we were children, we have looked up at the starry sky, looked at countless stars, and have always wondered what the stars are, and now that we have grown up, we also know that those shining stars are stars, but there is also a question, how many stars are in the sky.
Scientists have the same questions as us, so they continue to observe and calculate, and finally come to the conclusion that the galaxy where we are located, like the sun, has at least 100 billion stars, galaxies are large and small, and the galaxy we are in is not small in the universe, the small may only have a few thousand stars, but there are 1,000 billion stars like the Milky Way in the observable universe, so it seems that if there are 100 million stars in a galaxy on average, There are at least 1,000 billion stars in the entire universe.
Another point, the earth is just a subsidiary star of the star, it is conceivable that there are countless stars like the earth in the universe, so is there a possibility that the earth is just an "atom", the universe composed of countless different atoms is actually just an ordinary object, it may be a "metal ball", a "brick" or even a "person", in this "object", the gravitational force we are talking about is only the "inter-atomic" force under the microcosm of the "object", The black hole hidden deep in the universe may be an "immune cell" responsible for cleaning up garbage.
As a human being living on the "atom", trying to explore the laws of the universe as an "object", and creating a variety of disciplines and theories to summarize and summarize, but I don't know that maybe an "external force" is enough to break all the original conclusions, but exploration is the survival instinct of small human beings, even in their own small "atom" world, we still have to pursue the truth, even if it turns out to be wrong in the end, this kind of research spirit is worthy of respect, maybe we human beings are sitting in the well and watching the sky, But we're also trying to get out of this deep well.
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Well, I thought about it a long time ago, but the idea was that the sun was like a nucleus or some other baryon (after all, it can't be exactly the same), a planet as an electron or other lepton, or the whole galaxy as a particle (quarks don't have to be indivisible — the whole universe is almost a very uneven air mass).
But this assumption is meaningless, because if the scale is too different, it is impossible to observe, even if the technology is advanced, it is useless, this observation limit seems to be more than 40 square to minus 40 square, I can't remember clearly, of course, the unit is meters At the same time, if it is larger than this scale, its influence will also disappear, for example, if the earth is really part of a giant, then no matter what the giant is affected by, whether it is life or death, it will not change our universe in any way......So, do you think this issue is still worth our attention?
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No, only atomic crystals are made of atoms, and there are molecular crystals, ionic crystals, and metal crystals, and the space between atoms is an electrostatic field, which is a field formed by the gravitational and repulsive forces between atoms.
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The Earth is made up of many atoms.
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Analysis: Generally, a drop of water is, the density of water d=1g cm3, so the mass of a drop of water m=dv=
The amount of substance in a drop of water n=m m=
The amount of matter of atoms in a drop of water:
There are atoms in a drop of water:
There are so many that you can first calculate how many atoms the water on the earth contains, and the number is too large to express, and we can't write this number in a lifetime.
Good luck with your studies.
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There are thousands of substances on the earth alone, and their molar volumes are different, how can they be calculated? It's as simple as you name how many seconds there is in eternity. Or you go and ask God.
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The earth is made up of atoms and molecules, but atoms are not formed on the earth.
The universe has produced particles and evolved into protons, neutrons, electrons, etc. After the temperature of the universe drops, protons capture electrons and form hydrogen atoms. Another part of the protons merge together to form a helium nucleus, and the trapped electrons form the helium atom.
Hydrogen and helium together gravitationally aggregate to form a star, and "process" carbon, oxygen, nitrogen, sodium, calcium, ...... in the starAtoms of various elements such as iron. After the death of stars, the atoms of these elements are scattered in interstellar clouds, and some atoms combine with each other to form various molecules, which are then gathered by gravity to form new stars, planets, etc.
That's how the Earth was formed.
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Atoms are the elementary particles that make up the universe.
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The mass of the Earth is.
The main material of the earth is the ratio of protons to neutrons in a ratio of 1:1
The mass of the proton. Approximately:
Protons on Earth = *.
Estimates, but not too much off.
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Countless ......Or it is impossible to calculate ......Every atom has a proton ......Matter is made up of many atoms or molecules.
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This is a very philosophical question!
Answer: As many as the stars in the sky!
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The proton you're talking about is a god horse? Protons in the nucleus? Ready to refine protons to generate electricity? See how many years it lasts? Great ideals.
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It is impossible to count, just like the universe, how much matter there is, and no one can give a conclusion.
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