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"A molecule is a static object without any internal motion. The quantum clouds of all nuclei and electrons remain absolutely still for a molecule with a well-de
by pharrington 3y ago
"A molecule is a static object without any internal motion. The quantum clouds of all nuclei and electrons remain absolutely still for a molecule with a well-defined energy. Time is irrelevant."
Nah bro. Marie Curie gave up her life showing this isn't true. Maybe the author is confusing "static" with "stable"?
- GolDDranks 3y agoWhat did Marie Curie show about the internal dynamics of molecules? I thought that she was doing radioactivity? I think that what he means that whatever vibrational or rotational internal states the molecule would have, the molecule is almost always in a superposition of all of its possible states (a "smudge" of all possible vibrations, so to say), and because the states are cyclic/vibrational, there is no time evolution.
- bowsamic 3y agoThey mean that the molecule is generally in a stationary state, i.e. an energy eigenfunction, so it doesn’t evolve with time