Comments on: Valence Electrons of the First Row Elements

By: James Ashenhurst

James Ashenhurst — Tue, 13 Dec 2022 21:50:12 +0000

In reply to Siddhartha Kunwar. Xenon and Krypton have valence electrons that are sufficiently far away from the nucleus that they are not held on to as "tightly" via electrostatic forces and can form bonds with extremely good electrophiles (like fluorine). The valence electrons of argon and neon are too tightly held for compounds of these noble gases to be formed (so far)

By: Siddhartha Kunwar

Siddhartha Kunwar — Fri, 08 Oct 2021 13:45:47 +0000

I have a question that
” We are learning about chemistry and chemical reactions on the basis of traditional or hypothetical model of atom but if we see from the point of view of Quantum Mechanical model of an atom, Does all these reactions and all this we are learning about chemistry of different elements would be same or changes or something or not ?”
and ” Why only some Nobel Gases form compound after having a complete octet ? Why there is a need to form compound for noble gases and Why only Xenon and Krypton form compounds not He, Ar, and Ne form same like them?

By: James Ashenhurst

James Ashenhurst — Fri, 08 Mar 2019 20:48:44 +0000

In reply to Brooster.

Hi. Well, as Neils Bohr said, “Hvis man kan sætte sig ind i kvantemekanik uden at blive svimmel, har man ikke forstået noget af det” (If you can fathom quantum mechanics without getting dizzy, you don’t get it).

As for the nucleus, what keeps the positively charged protons together is the strong nuclear force, which only operates when nuclei are extremely close to each other. (Its strength tails off with distance to the 6th power).

By: James

James — Fri, 10 Nov 2017 21:30:42 +0000

In reply to Brooster. Regarding protons, they are held together in the nucleus by the strong nuclear force, which operates over extremely short distances.

By: Brooster

Brooster — Sun, 05 Nov 2017 13:27:20 +0000

This material leaves me with more questions than answers, which I feel is a good thing. One idea I do have, is the potential that an S orbital although shown to be a sphere, could have its electrons spinning in elaborate waves but always to be found within the sphere as stated above. The reason I state this is the view that wave/partical duality seems like a given, and what blows this bunnies brain, is the node is a non existent position that all electrons have, but can never be found there. Its almost as if the particle is flickering in and out of existence. Apparently this has been speculated before, but was something I felt myself must be the case. It gives rise to it being a particle, behaving as a wave, till the node is approached, then it briefly disappears to come back into verification on the other side of the dumbbell. The only issue I have with these models, is the one question that I wished I had of asked or thought about early on. How can positively charged particles, aka protons, remain in the nucleus of an atom. Ive played with magnets, and simply put, the repulsion makes it seem like a false model. I am not a physicist, nor overtly educated, but something must be apposing the repulsion,Quantum gravity perhaps. If there is such a thing. Newtons laws keep asserting, but in the realm of quantum, maybe everything is far from the experienced.