Talk:Pnictogen

message: === Pronounciation ===
How is this word pronounced?  Is the "p" silent, or not? RobertAustin (talk) 16:42, 21 July 2009 (UTC)
replies: text: The p is pronounced. I would put a pronunciation key into the article, but I'm not very confident in my IPA. :-) --Steve (talk) 19:02, 4 February 2010 (UTC)
replies: text: I'm not confident in my IPA at all, but in such a case I just add a phonetic-looking transcription, and then it can be improved by somebody who knows IPA 2603:8001:D3F0:87E0:0:0:0:10D0 (talk) 06:02, 21 January 2023 (UTC)
thread_title:  Questions about the word "pnictogens" 

message: How is this word pronounced?  Is the "p" silent, or not? RobertAustin (talk) 16:42, 21 July 2009 (UTC)
replies: text: The p is pronounced. I would put a pronunciation key into the article, but I'm not very confident in my IPA. :-) --Steve (talk) 19:02, 4 February 2010 (UTC)
replies: text: I'm not confident in my IPA at all, but in such a case I just add a phonetic-looking transcription, and then it can be improved by somebody who knows IPA 2603:8001:D3F0:87E0:0:0:0:10D0 (talk) 06:02, 21 January 2023 (UTC)
thread_title:  Pronounciation 

message: * I know that "gen" means "former," so what does the word "pnictogens" mean?Wd930Bot (talk) 03:45, 15 December 2010 (UTC)
thread_title:  Meaning 

message: The article (currently) says: "The lethal does of arsenic for a typical adult is 200 grams, and can cause diarrhea, vomiting, colic, dehydration, and coma. Death from arsenic poisoning typically occurs within a day."
I don't know the exact lethal dose for arsenic, but it's for sure to be expressed in milligrams. Probably it should be 200 milligrams. I read an on-line paper (don't remember the source, I will post it when I cross it again sometime) about numerous gathered cases of arsenic poisoning. People have died from doses of 50mg to 70mg. I lost the source. The deadly dose is also dependant on which form of arsenic has been ingested or inhaled. The most common form of arsenic is arsenic(III)oxide (As₂O₃), also called white arsenic and is also the substance which is referred to when speaking about arsenic poison. Some other forms of arsenic is even more poisonous. It depends on how easy the substance is taken up in the body. But even elemental arsenic is probably much more poisonous than what is described above, because of the formation of arsine in contact with hydrochloric acid (the acid also present in our stomachs).
Arsenic also knows a gas form: arsine. The wiki article mentions 20ppm as deadly. But that's just trivial semi-information, I think. (20ppm for what amount of time is the question, isn't it?). It is formed when arsenic comes into contact with acids or certain other substances (like zinc for instance).
If I remember this right: the above mentioned paper also declared that the signs of arsenic poisoning in less severe cases can take up to 24 hours and take several days to lead to death or recovery. So I'm in doubt the mentioned info is correct on this too. I expect, by my (limited) knowledge, that it should say: "Symptoms of arsenic poisoning typically occur within a day" instead of what is mentioned now.
Anyway, I think what is written here about the toxicity of arsenic should be reviewed by someone with good knowledge about the substance. If people who sometimes need to work with arsenic think 200 grams is the deadly dose, they might start taking risks without realizing the actual danger of handling this substance. Or at least the given source should be rechecked to see if there isn't any misreading or misinterpretation. (Or if there is no fault in the mentioned book itself)  - comment added by Aszazin (talk) 13:18, 14 January 2014 (UTC)
thread_title:  Major error in deadly dose for arsenic? 

message: As a comment on the above contribution in the section Requested move 2 above, perhaps it should be pointed out in all fairness to IUPAC that they do not "ban" chemical names: they have no authority to do so, they have no powers to enforce any such "ban", and they can impose no penalty on any author who uses a name that does not have their approval. They can, and do, "deprecate" the use of certain nomenclature, and I'm sure that this is what Double sharp had in mind.
As for the pros and cons of Pnictogen vs. Nitrogen group elements, Group V/Group XV/Group 15, I have no preference. I first heard the words Pnictogen and Pnictides some 30 years ago, at work, after some years as a PhD synthetic organic chemist. Let's leave Pnictogen as the title of the article - it is, after all, simply an item of argot, and I see no harm in being a nomenclature maven - it does, after all, allow the cognoscenti to be 'superior' to the year-10 script kiddies :-) VapourGhost (talk) 18:17, 22 June 2014 (UTC)
replies: text: Yes, that is indeed what I had in mind, and I was simply exaggerating, as seen from the quotes I placed around "banned". (I probably shouldn't do that, in case it gets misunderstood.) Double sharp (talk) 03:32, 23 June 2014 (UTC)
thread_title:  IUPAC do not "ban" names 

message: Under 'Production' and then 'Nitrogen' an absurd claim is made that nitrogen may be produced by burning hydrocarbons or hydrogen in air.  Nitrogen in diatomic form is already present in air if the temperatures are high enough some of the diatonic for may be lost as oxides of nitrogen, but burning hydrogen or pure hydrocarbons is not going to produce more diatonic hydrogen.
How did this foolishness get slipped in?
174.69.4.149 (talk) 22:16, 14 August 2016 (UTC)
thread_title:  Absurd claim. 

message: In our schooldays we used a term "Nicogen" for Group 15 (Nitrogen, Phosphorus, ...). Was the term "Nicogen" wrong? Was the term Nicogen meant some other group?  
I could not find any other Wikipedia page titled "Nicogen" as well.  — Preceding unsigned comment added by 2405:204:4426:B75E:498:4AED:91E9:B8FF (talk) 12:56, 3 February 2018 (UTC)
replies: text: "Pnicogen" is a commonly encountered alternative spelling, and it is pronounced exactly like "nicogen" would be: did you see the word in writing, or did you only hear it? (If the latter, it probably was "pnicogen".) Double sharp (talk) 12:58, 3 February 2018 (UTC)
thread_title:  "Pnictogen"- is it also called "NICOGEN"? 

message: The article suggests that lettuce and spinach are hosts for nitrogen fixing bacteria. I can find no support for this assertion!
Here is a link to a comprehensive list of nitrogen fixing plants
http://www.homesteadandgardens.com/soil-blog/wp-content/uploads/list-of-nitrogen-fixing-plants.pdf
there is also a page on Wikipedia:
https://en.wikipedia.org/wiki/Category:Nitrogen-fixing_crops
These are largely in agreement but neither mentions lettuce or spinach.
Mikalobakus (talk) 14:57, 5 October 2018 (UTC)
thread_title:  Nitrogen Fixation 

message: Is electronegativity relevant in the article about elements most whose compounds have a strong covalent character? Who cares about formal oxidation states when we compare, say, nitrogen with arsenic? Incnis Mrsi (talk) 15:23, 15 August 2019 (UTC)
replies: text: While drawing language insight from talk pgs would often be folly, it is IMO worth labelling "elements most of whose compounds ..." with the quantitative info about the relative insignificance. If WP:PAPER is no longer policy, surely you should have mentioned that foundational shift. I'm no real policy (nor chem) wonk either, so i don't recall the name of our policy concerning "thoroughness", but as the man said, surely "you could look it up".--JerzyA (talk) 22:29, 28 November 2019 (UTC)
thread_title:  Heavy emphasis on oxidation states 

message: The mention in the lead that the Americans used to call this group Va while the Europeans called it Group Vb leaves me curious: Did the Europeans have their own Group Va? Or is there just a Group V and the US went with Va for the annex, and the Euros went with Vb? or something else? 2603:8001:D3F0:87E0:0:0:0:10D0 (talk) 06:05, 21 January 2023 (UTC)
replies: text: In the American style, VA is group 15 (N-P-As-Sb-Bi-Mc), and VB is group 5 (V-Nb-Ta-Db). In the European style, it's the other way round: VA is group 5, and VB is group 15. (You see why we use a new numbering now.) Double sharp (talk) 18:14, 2 April 2024 (UTC)
thread_title:  Group Va and Group Vb 

message: "Nitrogen gas is completely non-toxic, but breathing in pure nitrogen gas is deadly"
Quite so, but it's deadly to breathe any pure element (or even any pure compound), other than oxygen. 87.75.117.183 (talk) 00:48, 25 March 2023 (UTC)
thread_title:  Nitrogen toxicity