Site icon Vern Bender

Atoms consist of an extremely small, positively charged nucleus.

Atoms consist of a tiny, positively charged nucleus surrounded by a cloud of negatively charged electrons. Although typically, the nucleus is less than one-tenth the size of the atom, the nucleus contains more than 99.9% of the atom’s mass.
The basic structure of an atom includes a tiny, relatively massive nucleus containing at least one proton and usually one or more neutrons. Outside the nucleus are energy levels (also called shells), which contain one or more electrons.
·n reality, atoms do not contain any space. Instead, they are filled with spread-out electrons, making the shrinking of atoms impossible.
Since atoms don’t have a solid surface, in one sense, there’s nothing to “touch” because there’s never a situation where one boundary meets another boundary. But “touch” also conveys a sense of up-close-and-personal influence, and atoms always touch.
  • The quantum-theoretical answer to the question is that atoms are not 99.99% empty. Despite what many descriptions in popular texts, and even in high school physics or chemistry textbooks, try to convey, they are misleading metaphors.
  • Yes, an electron does take up a finite, near-point-like amount of space, as does the nucleus, but only if you measure it. If you leave it alone, the electron is everywhere around the nucleus. An atom is filled with smeared-out electrons, which don’t occupy a particular near-point-like amount of space but exist as probability clouds.
Claimer before we launch into this: I am only a science fiction author, not an actual physicist. Everything I am about to write is my best understanding of what I have learned. A real expert in the field might read this and cringe at how wrong it is (though I hope otherwise). But with that all being said, on with the show.

The model of an atom we get in school looks like this: A ball made of balls, with many more petite balls zooming around it, right? And maybe you heard somewhere that if.

 
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