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I was puzzled by the fact that chromium and copper have five and ten electrons in 3d orbitals rather than four and nine. Now I have come to know from Dr. Wayne Breslyn's video that half-filled or completely filled d orbitals are more stable than those with one electron less. However, I found a few more exceptions in 4d orbitals, i.e., niobium, ruthenium, rhodium, and palladium, which are neither half-filled nor completely filled. What may be the explanation for the exceptional electronic configuration? Huzaifa abedeen ( talk) 06:32, 23 January 2022 (UTC)
Omicron virus discovered through Genome Sequencing method used not before 1970s. How different type of species were discovered before 1970s? Rizosome ( talk) 06:41, 23 January 2022 (UTC)
This line solved my doubt: Our article Virus classification explains how viruses are classified as species, most of which does not depend on genome sequencing but can be done by inspecting electron microscope images (for the phenotypic characteristics) and observing its macroscopic effects ( host organisms and disease symptoms). Rizosome ( talk) 07:04, 24 January 2022 (UTC)
I mean the stuff on band-aids and adhesive tape, not surgical adhesive. Any idea what it is that they use, and where to get it? Somehow separating it from adhesive tape might be a possibility if there's no other way. Application is strapless n95 masks, which stay on with adhesive (look up "Readimask"). They apparently work pretty well on first use, but aren't easily re-usable because the adhesive loses its stickiness. Thus, the is to find a way to add more. The masks seem like a nice idea but they are on the expensive side. 2602:24A:DE47:B8E0:1B43:29FD:A863:33CA ( talk) 08:11, 23 January 2022 (UTC)
Science desk | ||
---|---|---|
< January 22 | << Dec | January | Feb >> | January 24 > |
Welcome to the Wikipedia Science Reference Desk Archives |
---|
The page you are currently viewing is a transcluded archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
I was puzzled by the fact that chromium and copper have five and ten electrons in 3d orbitals rather than four and nine. Now I have come to know from Dr. Wayne Breslyn's video that half-filled or completely filled d orbitals are more stable than those with one electron less. However, I found a few more exceptions in 4d orbitals, i.e., niobium, ruthenium, rhodium, and palladium, which are neither half-filled nor completely filled. What may be the explanation for the exceptional electronic configuration? Huzaifa abedeen ( talk) 06:32, 23 January 2022 (UTC)
Omicron virus discovered through Genome Sequencing method used not before 1970s. How different type of species were discovered before 1970s? Rizosome ( talk) 06:41, 23 January 2022 (UTC)
This line solved my doubt: Our article Virus classification explains how viruses are classified as species, most of which does not depend on genome sequencing but can be done by inspecting electron microscope images (for the phenotypic characteristics) and observing its macroscopic effects ( host organisms and disease symptoms). Rizosome ( talk) 07:04, 24 January 2022 (UTC)
I mean the stuff on band-aids and adhesive tape, not surgical adhesive. Any idea what it is that they use, and where to get it? Somehow separating it from adhesive tape might be a possibility if there's no other way. Application is strapless n95 masks, which stay on with adhesive (look up "Readimask"). They apparently work pretty well on first use, but aren't easily re-usable because the adhesive loses its stickiness. Thus, the is to find a way to add more. The masks seem like a nice idea but they are on the expensive side. 2602:24A:DE47:B8E0:1B43:29FD:A863:33CA ( talk) 08:11, 23 January 2022 (UTC)