I like the imagery of the last post because it was tapping into the idea of waves and how sub-atomic particles behave like waves.
However, erm actually 🤓 …
you pet your dog and the electron-orbitals of your skin overlap with the electron-orbitals of his fur
No, they don’t overlap. Electrons are negatively charged, and like repels like. The orbitals will repel each other. This repulsion is the reason why you can feel the fur.
Edit: I’m getting nay-sayers that reckon they do. Please provide a reference that explains inter-molecular orbitals that cause bonding for a hand touching fur. The only thing I can think of this happening is for transition states. This would require a chemical reaction. I don’t think we categorise “touch” under “requiring a chemical reaction”.
Because the structure of the transition state is a first-order saddle point along a potential energy surface, the population of species in a reaction that are at the transition state is negligible. Since being at a saddle point along the potential energy surface means that a force is acting along the bonds to the molecule, there will always be a lower energy structure that the transition state can decompose into. This is sometimes expressed by stating that the transition state has a fleeting existence, with species only maintaining the transition state structure for the time-scale of vibrations of chemical bonds (femtoseconds).
To um actually your um actually, I think orbitals do overlap, isn’t that the very concept of atomic bonding and interaction? There’s a Wikipedia article but it’s way beyond me. Shame we’re not in !science_memes@mander.xyz, there’s usually a few experts hanging round their to correct me!
It was far long ago when I learned these stuff, but I recall that orbitals is more about probability to exist at certain points. So orbitals are more “diffuse” and “fuzzy”: there is a probability of an electron to exist 5m away from its nuclei, just the probability is astronomically low. Hence, there is no concept of concrete “touch” at this level.
Yeah that’s my recollection too. The areas where they are likely to exist overlap, and that’s what a bond/interaction is. The trouble with this stuff is that every year you studied it they told you that what you learned last year was a complete simplification and not really representative of what really happens!
I like the imagery of the last post because it was tapping into the idea of waves and how sub-atomic particles behave like waves.
However, erm actually 🤓 …
No, they don’t overlap. Electrons are negatively charged, and like repels like. The orbitals will repel each other. This repulsion is the reason why you can feel the fur.
Edit: I’m getting nay-sayers that reckon they do. Please provide a reference that explains inter-molecular orbitals that cause bonding for a hand touching fur. The only thing I can think of this happening is for transition states. This would require a chemical reaction. I don’t think we categorise “touch” under “requiring a chemical reaction”.
Source: https://en.wikipedia.org/wiki/Transition_state
To um actually your um actually, I think orbitals do overlap, isn’t that the very concept of atomic bonding and interaction? There’s a Wikipedia article but it’s way beyond me. Shame we’re not in !science_memes@mander.xyz, there’s usually a few experts hanging round their to correct me!
It was far long ago when I learned these stuff, but I recall that orbitals is more about probability to exist at certain points. So orbitals are more “diffuse” and “fuzzy”: there is a probability of an electron to exist 5m away from its nuclei, just the probability is astronomically low. Hence, there is no concept of concrete “touch” at this level.
Yeah that’s my recollection too. The areas where they are likely to exist overlap, and that’s what a bond/interaction is. The trouble with this stuff is that every year you studied it they told you that what you learned last year was a complete simplification and not really representative of what really happens!