What fraction of the volume of an atom is contained in its nucleus? Detailed answer

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What fraction of the volume of an atom is contained in its nucleus? Detailed answer

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What fraction of the volume of an atom is contained in its nucleus?

The size of an atom is determined by the radius of the electron orbit most distant from the nucleus, the order of magnitude of this radius in meters is expressed as a fraction with one in the numerator and one with 10 zeros in the denominator.

The order of magnitude of the radius of the atomic nucleus in meters is expressed as a fraction with a unit in the numerator and a unit with 14-15 zeros in the denominator. Thus, the radius of the atomic nucleus is 4-5 orders of magnitude (10-000 times) less than the radius of an atom.

It follows that the volume of the atomic nucleus is less than the volume occupied by the atom by 12-15 orders of magnitude, that is, a trillion - quadrillion times.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

Why was the horse stripped of honors?

The Egyptians revered over a hundred representatives of the fauna. One of the most revered was the scarab, which deftly rolled balls of dung. Why such mercy to the dung beetle? According to the priests, the rolling of balls by scarabs symbolized the movement of the sun across the sky.

The god of royal power and war Horus was depicted in the form of a falcon, the god of the kingdom of the dead Anubis had the appearance of a jackal, and the ibis personified the god of wisdom Thoth.

Worship of animals sometimes reached the point of absurdity. Luxurious temples were built in honor of cats, where they had their own priests and admirers. Dead cats were buried in special cemeteries. They were embalmed, wrapped in expensive linen. If the cat died, then all family members shaved off their eyebrows as a sign of deep mourning. A person who deliberately or even accidentally killed a sacred animal faced the death penalty. Cats, snakes, jackals, ibises, peacocks, sheep, crocodiles, oxen, donkeys - everyone found a place in the Egyptian pantheon!

So how did it happen that the horse, which was so honored by the Slavs and Scythians, the ancient Indians and Greeks, was left without attention in Egypt? Everything is explained simply. Horses came to Egypt only in the middle of the second millennium BC - they were brought with them by the Hyksos conquerors. The Egyptians did not want to deify horses, because by that time the pantheon of gods had already developed.

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