Anybody who does organic chemistry: is triethyl phosphite a chemical than can go bad quickly when in contact with oxygen? Tributyl phosphane does but then again that can be oxydised a lot more easily …
@Muzammil Heh. Now I want a shirt that says do the needful.
Anyone here obsessed with Sigma-Aldrich?
> Sigma-Aldrich.com will be down for scheduled maintenance Saturday, June 13, 2015, at 3:00 p.m. (15:00) Central Daylight Time U.S. for approximately 4 hours. Please note that you will still have telephone and email access to our local offices.
We tried accessing the Sigma site during our seminar this morning (like eleven hours ago … damnit, today is a twelve-hour day already ~.~) and it wasn't accessible xD
It seems that editing posts has recently gone out of control. There is certainly a need for editing and it has always been occurring. In the past it seems like one person at a time was responsible for making 10-15 edits everyday. Now, there are several people doing this throughout the day.
Af...
WebElements page about chromium (and a number of resources) agree with the comment by @Philipp:
The ground state electron configuration of ground state gaseous neutral chromium is $\ce{[Ar]}3d^54s^1$
Which can be written as $\ce{[Ar]}4s^13d^5$
According to the Royal Society of Chemistry...
Which makes me think … Say somebody wrote a real good question asking why chromium 'violates' the aufbau principle; would that be pointed there and closed as a duplicate? If so, that would be a shame …
It seems that editing posts has recently gone out of control. There is certainly a need for editing and it has always been occurring. In the past it seems like one person at a time was responsible for making 10-15 edits everyday. Now, there are several people doing this throughout the day.
Af...
WebElements page about chromium (and a number of resources) agree with the comment by @Philipp:
The ground state electron configuration of ground state gaseous neutral chromium is $\ce{[Ar]}3d^54s^1$
Which can be written as $\ce{[Ar]}4s^13d^5$
According to the Royal Society of Chemistry...
The Periodic Table
The Periodic Table