Isoelectronic Puns

Journal of the American Chemical SocietyDOI: 10.1021/jacs.0c12084

Mujahuddin M. Siddiqui, Samir Kumar Sarkar, Mohd Nazish, Massimiliano Morganti, Christian Köhler, Jiali Cai, Lili Zhao, Regine Herbst-Irmer, Dietmar Stalke, Gernot Frenking, and Herbert W. Roesky

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Journal of the American Chemical SocietyDOI: 10.1021/jacs.0c00879

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I basically have 4 weeks to teach myself chemistry I, my professor is no help and acts like you're dumber than a rock if you dont understand something.

The question is:

Name one cation and one anion isoelectronic with ION of element Z = 38

I get that Sr+2 is Rb. But how do I get to the other? I'm completely lost on this. Thank you

Nature Chemistry, Published online: 03 August 2020; doi:10.1038/s41557-020-0505-5

Three crystalline complexes comprising a linear [UN2] moiety that is isoelectronic to the ubiquitous uranyl cation [UO2]2+ have been prepared by reaction of UCl5 or UBr5 with liquid ammonia. Quantum chemical calculations showed that the bonding in the [UN2] moieties is best described with two U≡N triple bonds.

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An eight‐vertex Zintl anion with an arachno‐type structure obtained from solution, (Sn5Sb3)3− (1 ), was synthesized as its [ n Bu4P]+ salt. Calculations on the isoelectronic series (Sn x Sb8−x )2−x (x =0–8) were performed to investigate possible alternative structures of 1 , which revealed that the preferred structures of the isomers vary significantly with composition, independent of electron count.

Abstract

The pseudo‐element concept, in its most general formulation, states that isoelectronic atoms form equal numbers of bonds. Hence, clusters such as Zintl ions usually retain their structure upon isoelectronic replacement of some or all atoms. Here, a deviation from this common observation is presented, namely the formation of (Sn5Sb3)3− (1 ), a rare example of an eight‐vertex Zintl ion, and an unprecedented example of a Zintl ion synthesized by solution means that has an arachno‐type structure according to the Wade–Mingos rules. Three structure‐types of interest for (Sn5Sb3)3− were identified by DFT calculations: one that matched the X‐ray diffraction data, and two that that were reminiscent of fragments of known clusters. A study on the isoelectronic series of clusters, (SnxSb8−x)2−x (x=0–8), showed that the relative energies of these three isomers vary significantly with composition (independent of electron count) and that each is the global minimum at least once within the series.

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Sorry if the question isn't phrased properly... I'm just wondering why two different elements with identical electron configurations still have unique emission spectra. Is it because of the difference in atomic radii, creating different energies for the electrons to jump to different orbitals?

Thanks to anyone who takes the time to respond!

Hi guys! So isoelectronic ions/atoms are those which have the same electron configuration, right? What if you have an electron configuration such as copper ([Au]4s1 3d10)- an exception to the electron configuration rules as it is more stable with a full d subshell and an unpaired s subshell- and a Zinc cation - Zn+ ([Au]4s2 3d9). Even though Cu and Zn+ have the same number of electrons, they don't have the same configuration. My guess is that they are not isoelectronic, but can anyone verify? Seems like one of those tricky questions the MCAT loves to ask. Thanks and happy studying :)

*Edit: Zn+ electron configuration is [Au] 4s1 3d10 because the 4s subshell loses electrons before the inner 3d subshell loses electrons. I guess I answered my own question, since this means the Zn+ electron configuration is actually the same as the Cu electron configuration. In other words, they are isoelectronic.

Isoelectronic means that they have the same number of electrons. Boron nitride (BN) is isoelectronic with with carbon, but I can't envision it. I've tried funding a dot and cross diagram to show the electrons, but the closest I've found is a boron triple bonded to the nitrogen. That would mean nitrogen would have a lone pair. How would it form the same structure as graphite then?

Another example that Google have me was carbon monoxide being isoelectronic with nitrogen. I don't understand how they are either.

I don't want to step on anybody's toes here, but the amount of non-dad jokes here in this subreddit really annoys me. First of all, dad jokes CAN be NSFW, it clearly says so in the sub rules. Secondly, it doesn't automatically make it a dad joke if it's from a conversation between you and your child. Most importantly, the jokes that your CHILDREN tell YOU are not dad jokes. The point of a dad joke is that it's so cheesy only a dad who's trying to be funny would make such a joke. That's it. They are stupid plays on words, lame puns and so on. There has to be a clever pun or wordplay for it to be considered a dad joke.

Again, to all the fellow dads, I apologise if I'm sounding too harsh. But I just needed to get it off my chest.

Alot of great jokes get posted here! However just because you have a joke, doesn't mean it's a dad joke.

THIS IS NOT ABOUT NSFW, THIS IS ABOUT LONG JOKES, BLONDE JOKES, SEXUAL JOKES, KNOCK KNOCK JOKES, POLITICAL JOKES, ETC BEING POSTED IN A DAD JOKE SUB

Try telling these sexual jokes that get posted here, to your kid and see how your spouse likes it.. if that goes well, Try telling one of your friends kid about your sex life being like Coca cola, first it was normal, than light and now zero , and see if the parents are OK with you telling their kid the "dad joke"

I'm not even referencing the NSFW, I'm saying Dad jokes are corny, and sometimes painful, not sexual

So check out r/jokes for all types of jokes

r/unclejokes for dirty jokes

r/3amjokes for real weird and alot of OC

r/cleandadjokes If your really sick of seeing not dad jokes in r/dadjokes

Punchline !

Edit: this is not a post about NSFW , This is about jokes, knock knock jokes, blonde jokes, political jokes etc being posted in a dad joke sub

Edit 2: don't touch the thermostat

Do your worst!

How the hell am I suppose to know when it’s raining in Sweden?

Ants don’t even have the concept fathers, let alone a good dad joke. Keep r/ants out of my r/dadjokes.

But no, seriously. I understand rule 7 is great to have intelligent discussion, but sometimes it feels like 1 in 10 posts here is someone getting upset about the jokes on this sub. Let the mods deal with it, they regulate the sub.

They were cooked in Greece.

I'm surprised it hasn't decade.

Now that I listen to albums, I hardly ever leave the house.

Two muffins are in an oven, one muffin looks at the other and says "is it just me, or is it hot in here?"

Then the other muffin says "AHH, TALKING MUFFIN!!!"

Don't you know a good pun is its own reword?

For context I'm a Refuse Driver (Garbage man) & today I was on food waste. After I'd tipped I was checking the wagon for any defects when I spotted a lone pea balanced on the lifts.

I said "hey look, an escaPEA"

No one near me but it didn't half make me laugh for a good hour or so!

Edit: I can't believe how much this has blown up. Thank you everyone I've had a blast reading through the replies 😂

It really does, I swear!

And now I’m cannelloni

Because she wanted to see the task manager.

And boy are my arms legs.

But that’s comparing apples to oranges

Heard they've been doing some shady business.

but then I remembered it was ground this morning.

Edit: Thank you guys for the awards, they're much nicer than the cardboard sleeve I've been using and reassures me that my jokes aren't stale

Edit 2: I have already been made aware that Men In Black 3 has told a version of this joke before. If the joke is not new to you, please enjoy any of the single origin puns in the comments

Mathematical puns makes me number

BamBOO!

They’re on standbi

A play on words.

Put it on my bill

Zintl anions are excellent examples of the application of isoelectronic considerations, also referred to as the pseudo ‐element concept. In its most general formulation, this concept states that isoelectronic atoms tend to form equal numbers of bonds. Hence, clusters such as Zintl ions usually retain their structure upon isoelectronic replacement of some or all atoms. Herein, we present a combined experimental and theoretical study on a deviation from this common observation. We report the formation of (Sn 5 Sb 3 ) 3− ( 1 ), which is a rare example of an eight‐vertex Zintl ion. Furthermore, it is an unprecedented example of a Zintl ion synthesized by solution means that has an arachno ‐type structure according to the Wade‐Mingos rules, and thus fills a gap in the series of known compounds. Three structure‐types of interest for (Sn 5 Sb 3 ) 3− were identified by means of quantum chemical calculations, one that matched the X‐ray diffraction data, and two that that were reminiscent of fragments of known clusters. A comprehensive study on the isoelectronic series of clusters, (Sn x Sb 8−x ) 2−x (x = 0 – 8), showed that the relative energies of these three isomers vary significantly with composition – independent of electron count – and that each is the global minimum at least once within the series. These results alter our understanding of the factors that determine the structures of multi‐element clusters.

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