The Periodic Table

orthocresol

00:00

May, Cameron, and Brown all were from Oxford.

Margaret Thatcher did chemistry at Oxford. ;)

Jan

Nice. Compare that to the university of Göttingen at which Frauke Petry studied chemistry D=

Hexacoordinate-C

After it will be to complex for me know to tell a lot of things. But I'm working on it. For the moment I read articles every where. After I'll choose what I found to be the best and I'll do my presentation power point

I'll have next week no lessons so I'll finish it then. I'll can share you the pdf it you want haha. With all my english mistakes sure ^^

Jan

And then @ortho will be looking for the edit link at the bottom left of the PDF =D

Hexacoordinate-C

I knew M. Thatcher studied chemistry but not she did it at Oxford

orthocresol

@Jan retagged, retitled, chemdraw

Hexacoordinate-C

00:02

@AnimeshAshish everything is relative

Well everything but not Kelvin scale. Hum maybe Einstein was wrong :P

orthocresol

but siths deal in absolutes

Jan

Cards are dealt absolutely, too.

1

Q: Correct stability order of resonance structures

Question no 9 as far as I know none of the rules of relative order of stability apply to this( completion of octate,charge seperation etc.) So they all must be equally stable but the answer is (D)

Oh gosh, that question D=

Hexacoordinate-C

@orthocresol what's that

orthocresol

115

Q: If only the Sith deal in absolutes, why does Obi-Wan say it that way?

Obi-Wan tells Anakin that "Only the Sith deal in absolutes", and uses that as his identification that Anakin had actually turned to the Dark Side. But it would seem the statement itself "Only the Sith deal in absolutes" would be an absolute statement itself, and that his rash actions based on th...

star-wars sith

Hexacoordinate-C

@orthocresol I meant what you removed

Thanks for this one too :D

orthocresol

00:06

Ah, no big deal. I was trying to understand it but I kinda figured out what he meant.

Hexacoordinate-C

I want to read the last sentence lol

Share me the link to read that lol

Please .

orthocresol

The very general answer is because they have orbitals that are close together in energy (corresponding to photons in the 100-1000 nanometer range) and allows for efficient non-radiative dissipation of exitations. According to wikipedia, f-f transitions are probably not the culprits, since in contrast to transition metals they are non-bonding - there is no vibronic coupling between them to "allow" for forbidden transitions. However: Europium, with half filled f orbitals - is colorless... There is something about the f-shells. — Stian Yttervik yesterday

His example is not great, though. According to the book I have, Eu(3+), which has 4f6 (not a half filled subshell), is the colourless ion. Eu(2+), which has 4f7, is pale yellow.

Hexacoordinate-C

Thank you ! ^^

@AnimeshAshish if you have other question feel free to ask them. Also I can give you my mail

@orthocresol I like when you share things I can't feel because of my lack of knowledge in quantum physics. But for this time I'm able to undertand it ! :D

orthocresol

:)

Hexacoordinate-C

Siths deal with absolutes is fun

@Jan what about you? Is your Ph.D going in the way you want?

Jan

00:21

It’s slower than I want. Bureaucracy is slow .__.

Hexacoordinate-C

@orthocresol This guy needs you chemistry.stackexchange.com/questions/69580/…

@Jan call Trump I bet he can do something for bureaucracy ;)

Jan

> We have great bureaucracy! Greatest in the world! And we’re gonna make bureaucracy even greater!

Hexacoordinate-C

Make bureaucracy better again !

barlop

how is this lactic acid fermentation equation balanced? C3H3O3 (pyruvate) + NADH → C3H6O3 (lactic acid) + NAD+ ?

Hexacoordinate-C

study.com/academy/lesson/…

barlop

00:31

it says that to unlock it i need to create an account

is it free?

and it says even then you can only use it for 5 days

Hexacoordinate-C

Well ask your question in google there are many things ;)

barlop

even wikipedia doesn't have it

Hexacoordinate-C

I am not qualify to answer you like that ^^

barlop

I don't think you even checked that link that you gave me

Hexacoordinate-C

google.fr/…:

Look in google picture

Jan

00:33

It should always be NADH/H+ (for charge and atom balance)

Hexacoordinate-C

google.fr/…

Look at it

Not sure but maybe smthg to help

Milchsäuregärung

Milchsäuregärung bezeichnet Wege des Energiestoffwechsels bei Lebewesen, bei denen Glucose und andere Monosaccharide zu Milchsäure allein oder daneben noch anderen Endprodukten abgebaut werden. Es sind exergone chemische Umsetzungen, die den Lebewesen als Energiequelle dienen. Vor allem Milchsäurebakterien betreiben die Milchsäuregärungen. Bei Sauerstoffmangel kann aber auch in manchen Pilzen, Pflanzen und Tieren sowie beim Menschen (→ Hypoxämie) Milchsäure aus Zuckern gebildet werden. Der Regelfall der Milchsäuregärung bei Menschen und anderen Tieren ist jedoch die Energiegewinnung aus Glucose…

OK this is in dutch but chemistry still the same

Jan

It’s in German, deary ;)

But as I said, NADH is always accompanied by H+.

Hexacoordinate-C

German oh really

Well chemistry if not more german (well a little) than me ^^

youtube.com/watch?v=XcapJXaeOGw I love her playing.

orthocresol

@Hexacoordinate-C She played a concert in Oxford, in mid-January. I managed to catch it. It was sold out :D

bachtrack.com/…

Hexacoordinate-C

@orthocresol you mean that wasn't able to buy a ticket ?

orthocresol

00:47

It means that you would not have been able to buy a ticket, if you were too slow.

Luckily, I was fast.

Hexacoordinate-C

OK so I hope it was great !

Prokofiev is not quite easy to play. Well for her everything is but that's another point lol

youtube.com/watch?v=Gh9WX7TKfkI it upset me to see her playing like it she was buying some bread lol

orthocresol

Hahaha

Yeah. I'm not much of a pianist, so everything for me is difficult. ;)

Hexacoordinate-C

I have been playing it for 7 years now and well when I see and hear professionals playing I'm always jaw dropping

orthocresol

The Scarlatti sonata?

Or just the piano in general?

Hexacoordinate-C

I not include Lang-Lang in professional this guy is too crazy to have my respect lol

7 years in the same piece would have been very long :P

orthocresol

00:53

Lang Lang to me is hit or miss, I really like some of his stuff, but I hate the rest of his stuff.

Hexacoordinate-C

I've never played Scarlatti yet maybe I'll try some easier piece if I have time. Last week I started Op 66 n°4 Impromptu by Chopin it hurts me haha

Because I have to play 8 notes in the right hand when I play 7 or 6 at the left ..

orthocresol

Oh...

It doesn't have to be super clean, you just have to end on the right note at roughly the right time ;)

Hexacoordinate-C

Yes I look at specific notes in the sheet which must be played in the same time then I just play without thinking between them and it works but to play it slowly is kinda hard

orthocresol

Yeah, I often find playing something slowly to be harder than playing it fast.

You need more control over what you're doing

It's the same on the violin, which is my primary instrument..

Hexacoordinate-C

Yes and play slowly first is the best way to play it correctly faster

orthocresol

00:58

Mmhmm.

Definitely

Hexacoordinate-C

What is difficult is that I can't read and play this piece in the same time

I put some colors on notes which must be played in same time to follow it better but I can't do it like if I was playing some Mozart butterbrot

orthocresol

It'll get better as you figure out the notes.

Hexacoordinate-C

Cyprien Katsaris LIVE - Mozart: Das Butterbrot

►

It needs me 1h to learn it and play it correctly :D

orthocresol

@Jan I guess "pale" and "bright" refer to different things?

I think I'll go for "pale" instead.

Hexacoordinate-C

Are you refering from what I shared ?

orthocresol

01:07

No, Jan left a comment on one of my answers.

I was listening to that video. 1 hour is pretty short, actually.

I think I might need slightly more time than that haha

Hexacoordinate-C

Well for me it is a simple piece to play. But Katsaris made his own version

orthocresol

Oh, that would explain why it doesn't seem trivial...

Hexacoordinate-C

Well the good version is not quite more simple. He just added some more notes sometimes

youtube.com/watch?v=XIbgGcWqBy4 it begins at 0:06

orthocresol

@Hexacoordinate-C I expected young Mozart to be more boring than that.

There are some of his very early piano concertos on YouTube:

Hexacoordinate-C

I don't like him a lot but there are some so well known you can't dislike them

orthocresol

01:16

Ah. Yeah, I don't play Mozart much either

Hexacoordinate-C

Andante of 21th concerto, KV 545 sonata, Turkirsh march

etc ...

orthocresol

Mozart wrote five violin concertos, but I'm not a huge fan of any of them.

Hexacoordinate-C

Well I only listen Piano pieces ^^

orthocresol

I think his piano works were better, so you get the nice stuff haha

Hexacoordinate-C

Even Beethoven symphonies I prefer them played in piano lol

Arranged by Liszt and played by Gleen Gould

orthocresol

01:19

The Liszt transcriptions?

Ah, yeah. :D

Hexacoordinate-C

For Violon you have Bach

@gannex hi

orthocresol

Yeah, I like Bach.

Hexacoordinate-C

All By Myself in Barcelona

►

@orthocresol look at them I love haha

It looks all by myself song works with Rachmaninov second concerto

If you like a bit RAP look at "do you believe in gravity" this is just ... really good haha

Do you believe in gravity?

►

hBy2Py

Hard downvote and VTC here please

@ortho or @Mart or @Loong

orthocresol

01:35

@hBy2Py Yup, not the thing you want to be posting in chat...

hBy2Py

02:01

@orthocresol Gotta remember not to post garbage that way. Is so much easier to just paste in the link, though.

Also gotta stop mass pinging, even for something like this.

orthocresol

As long as you include some other text in the chat message, it won't onebox, so that might work. :)

1,3-feeds

04:15

1

Q: Better living through home experiments? Chapter II

I'd like to revisit Scope of unsuitable questions to include security and hazardous flags in light of a question that came up today and elicited some controversy. The question in question is Increase HCl concentration. There were some strong reactions and flags indicating that having the inform...

discussion safety

gannex

06:11

@Martin-マーチン I've got a question for you if you're around

Martin - マーチン

07:01

@gannex I'm on the road... Back online on Monday

M.A.R.

@Mart is going to the moon

chemistry.stackexchange.com/revisions/69762/1

M.A.R.

14:24

@hBy2Py That upvote was me, BTW. Can you figure out why?

pentavalentcarbon

15:59

@M.A.R. trying to set an example, I see

M.A.R.

@pentavalentcarbon ?

pentavalentcarbon

that...that beast that just appeared

M.A.R.

Well, a bit late

pentavalentcarbon

Well, someone has to start sometime

Hasn't this been talked about on and off for ages?

M.A.R.

If by that you mean @Mart badgering me into posting it

BTW, @Mart and @Ortho, I had to type that from scratch.

MS word messed up the previous draft

This one is kinda better anyway

pentavalentcarbon

16:02

solution: don't use Word

M.A.R.

@pentavalentcarbon Learned that the hard way

pentavalentcarbon

it can't do complicated things, but even something like LibreOffice is better

(at least I don't think it can, I rarely use it)

M.A.R.

Notepad is the best

pentavalentcarbon

NO

where's my squirt bottle

Notepad is bad for rather silly reasons but it is still better to not use it, and use Notepad++ or Sublime Text or Atom or ...

M.A.R.

Notepad++ isn't half bad

pentavalentcarbon

16:08

Notepad++ is fine. Regular Notepad is bad because it does weird things with character encodings that terminal programs and sometimes text boxes in web browsers will choke on.

M.A.R.

Yeah, that was the thing MS word did to my first draft

pentavalentcarbon

And it is sooooooo hard to find hidden characters in Word documents that will cause even more problems.

Something that people who write lots of text/math in different formats and need to convert should use is Pandoc. I don't think there's a GUI though.

M.A.R.

The bad part about this is it's gonna be hard for people to suggest edits.

But well, I promised that. Now I think Mart promised me a diamond or something

WHERE'S MY DIAMOND

pentavalentcarbon

there's your stinkin diamond

M.A.R.

That looks like a spider, not a diamond

pentavalentcarbon

16:13

(I was wrong about a Pandoc GUI: panconvert.sourceforge.net)

boy, haven't thought about oxidation state in...a while

I should suggest an edit that wipes the whole answer and says "you look at the mystery molecule and the answer just appears in your head"

M.A.R.

@pentavalentcarbon Uh, that occurred to me more than a couple of times when I was typing out the stuff

pentavalentcarbon

As time passes it becomes much easier to forget how you learned something

M.A.R.

1. You look at the compound

2. You will the oxygen to be -2

3. Everything else sorts itself out

4. Manganese has an OS of 6.329592

Done

pentavalentcarbon

¯\_(ツ)_/¯

Maybe a few more of these will help get the high-rep users to do self-answers.

M.A.R.

@pentavalentcarbon What should the next diary be about?

How to organic chemistry?

pentavalentcarbon

16:26

Well, it certainly won't be something that I could/should write, but I think picking something from the hat of "most commonly asked categories" is a start.

"Organic chemistry" is maybe a little too broad though.

M.A.R.

I know, I was 9gagging

pentavalentcarbon

Clicking on homework tells me that some brave soul should do one for stoichiometry.

M.A.R.

Sheesh, this one was already killing me when it was rendering Mathjax

Actually, you should write something about introducing people to softwarez @Pent

pentavalentcarbon

@M.A.R. Seriously...write in LaTeX or Markdown locally, not in the browser, then convert, paste into browser, proofread/fix up.

It really solves that problem.

M.A.R.

Solves, but I'm used to this environment

I actually can turn MathJax off, but I thought of that late

In the beginning, "You don't need to turn MathJax off because it's loading fine", in the end "You don't need to turn MathJax off because it's almost over anyway"

orthocresol

16:32

@M.A.R. When I read "Alkaline earth metals adapt a +2 OS", I was ready to nitpick.

When I got to the end, I was quite impressed.

M.A.R.

@orthocresol Well, the answer is kinda two parts. The first part is for beginners, and the second part nitpicks whatever is said in the first

So read on.

pentavalentcarbon

Stockholm syndrome

Stockholm syndrome is a condition that causes hostages to develop a psychological alliance with their captors as a survival strategy during captivity. These feelings, resulting from a bond formed between captor and captives during intimate time spent together, are generally considered irrational in light of the danger or risk endured by the victims. Generally speaking, Stockholm syndrome consists of "strong emotional ties that develop between two persons where one person intermittently harasses, beats, threatens, abuses, or intimidates the other." The FBI's Hostage Barricade Database System shows...

M.A.R.

Well . . .

Tabriz Syndrome

hBy2Py

@M.A.R. Uhh... you're going to change your name to 'magnetite' soon?

@pentavalentcarbon This is the only way to write MathJax

M.A.R.

@hBy2Py I don't need to change my name to be a magnet of awesomeness

hBy2Py

16:35

Well, no, that's self-evident

pentavalentcarbon

Atom with a Markdown plugin will give you not only live preview, but MathJax. atom.io/packages/markdown-preview-plus

Are these things perfect? Hell no. Is it better than having your browser murder your computer every time you type a character? Yes.

hBy2Py

Seriously. It's like epileptic seizures at 5 Hz.

pentavalentcarbon

All it takes is maybe 2 chemical formulas before I want to chuck my 2012 MacBook Air out the window

hBy2Py

@M.A.R. Ah, now I've seen your Oxidation State Magnum Opus (OSMO™), and the reason becomes clear.

M.A.R.

BTW, we should go to meta and start organizing canonicals

@hBy2Py OSMO, I like it

pentavalentcarbon

16:38

I thought one had prompted this, and I was surprised to find nothing. So yes.

hBy2Py

@M.A.R. I think there's a post for that somewhere...?

But that might be for proposing canonicals, rather than collating canonicals.

M.A.R.

@hBy2Py There's a meta post about meta posts about canonicals, prolly

pentavalentcarbon

You meta fanatics need to get your act together.

M.A.R.

Nice, first comment on the answer is badass.

There's meta about beginning to write canonicals, but there isn't meta that "Here's a list of long thingies we call canonicals"

IIRC at least

orthocresol

@M.A.R. Looks like your question needs to be cleaned up during TRE-2, as it only has one tag.

M.A.R.

16:42

@orthocresol We can always tag it as [chemistery-halp]

orthocresol

Or everyday-chemistry + reaction

^ cc @Jan

pentavalentcarbon

@M.A.R. If there is I can't find it

pentavalentcarbon

17:21

orthocresol

17:35

@pentavalentcarbon hmm, thanks for sharing this. I have the same issue with Mathjax on my Mac, so I usually boot Windows if I am typing something Mathjax-heavy...

M.A.R.

@pentavalentcarbon I've installed Atom

pentavalentcarbon

A problem is that there are lots of knobs...I am not an Atom user, so I don't know all the details, but here is what I did:

1. Open Preferences/Settings, click on Packages on the left-hand side
2. Search "markdown", and click Disable for `markdown-preview` under Core Packages
3. Click on Install on the left-hand side, search for `markdown-preview-plus`, hit enter, install it (and optionally `markdown-preview-plus-opener`)
4. Go back to Packages, and find the settings for `markdown-preview-plus`, and click "Enable Math Rendering By Default"
5. ???
6. Profit

M.A.R.

17:51

I should downvote an answer to become 5656 rep, for fun

Downvotes @Jan

M.A.R.

18:06

pentavalentcarbon

yikes

M.A.R.

@pentavalentcarbon I wonder which part is more yikey

Loong

@M.A.R. I have got the same warning for my petrol question.

pentavalentcarbon

Good that you've recognized multiple things

M.A.R.

BURN JIFF IMAGES WITH FIRE

pentavalentcarbon

18:12

What I am curious about is the image upload popup

the C:\fakepath bit

M.A.R.

Yeah, sounds fake

I've always wondered what it is

pentavalentcarbon

What would you want to see in a canonical software question?

to avoid closed as too broad

M.A.R.

@pentavalentcarbon I dunno. You know that. What troubles newbies when first getting into comp chem?

pentavalentcarbon

fine :( all is solved with 'RTFM'

M.A.R.

18:28

Well, what Chem.SE does is make TFM more accessible/understandable

M.A.R.

19:04

29

A: Why allow questions "on hold" to be edited?

orthocresol

20:04

@M.A.R. Ouch.

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