Talk:Timeline of chemical element discoveries

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June 15, 2008 Peer review Reviewed
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lead and tin[edit]

I took this out :Lead was first purified and clearly differentiated from tin by medieval [[Alchemy and chemistry in Islam|Middle Eastern chemists]]<ref name=El-Eswed>{{Cite journal|title=Lead and Tin in Arabic Alchemy|first=Bassam I.|last=El-Eswed|journal=Arabic Sciences and Philosophy|year=2002|volume=12|pages=139–53|publisher=[[Cambridge University Press]]|doi=10.1017/S0957423902002060}}</ref> as lead and tin were purified and clearly differentiated from at least Mesopotamian times. J8079s (talk) 02:57, 5 September 2009 (UTC)

Here's a cite Ancient Mesopotamian Materials and Industries: The Archaeological Evidence By Peter Roger Stuart Moorey Published by EISENBRAUNS, 1999 ISBN 1575060426 J8079s (talk) 03:09, 5 September 2009 (UTC)

What is this supposed to mean ?[edit]

"The elements are listed generally in the order in which each was first defined as the pure element, as the exact date of discovery of most elements cannot be accurately defined."

What is this misconceived sentence supposed to mean? What does "defined as the pure element" mean ?? There is a problem with the word "defined". You can infer the existence of, discover, extract, measure, determine the properties of a chemical element, but you cannot "define" it. And what is a "pure element" ? All elements are "pure". Is the sentence intended to mean, the preparation of a sample of the element which is not mixed or compounded with any other element ? To what degree of purity ? For many elements, preparation of "pure" ( uncontaminated ) samples occured decades after the existence of the element was scientifically conclusive.Eregli bob (talk) 04:09, 28 November 2010 (UTC)

Gold and Queen Zer[edit]

Queen Zer I suggest never existed. There are lots of websites that mention her and her gold or turquoise burial goods, but many are plainly humbug, for example many date her to 5500 BC. The earliest mummies are no earlier than about 3300 BC. I can find this reference [1] to a queen Zur, wife of an Athotis.

I suggest that Zer is a old variant of Djer(Aka Athothis), and hence not a queen. Gold was found associated with Djer, see [:File:CeremonialFlintKnife-Djer.png] for example. This site purports to have a picture of the gold and turqoise bracelet found on a human wrist at tomb O, identified as the tomb of Djer. I'll mark the article as "dubious".

"widely known"[edit]

In the "Recorded discoveries" table is a column headed "Isolation (widely known)". I have no clue what this means. What is it that is "widely known"? The element? The person who isolated it? The fact that it was isolated? 86.160.83.63 (talk) 20:55, 28 March 2011 (UTC)

Smelting of iron / iron age[edit]

"The discovery of smelting around 3000 BC led to the start of the iron age around 1200 BC"

It needs to be clarified whether "discovery of smelting" refer to the smelting of iron or to the general technique. If the former, then why was there a 1800 year gap? If the latter, then it contradicts the statement earlier that "lead smelting began at least 9000 years ago". 86.181.201.159 (talk) 13:43, 30 March 2011 (UTC)

Possible mistake[edit]

When referring to Carbon, "Samaritans" are mentioned. This might be a mistake. Perhaps, Sumerians are meant. — Preceding unsigned comment added by 81.148.29.164 (talk) 10:57, 9 September 2011 (UTC)

I have improved the text. — Preceding unsigned comment added by 81.148.29.164 (talk) 15:14, 9 September 2011 (UTC)

Not a good entry title[edit]

"chemical elements discoveries" is not idiomatic English. I would say it requires an apostrophe ("chemical elements' discoveries", i.e. the discoveries of the elements) or, better, should be changed to "chemical element discoveries". 86.135.115.218 (talk) 10:57, 6 April 2012 (UTC)

Platinum[edit]

Platinum was known to native Americans before Columbus; shouldn't it be placed in the first table with a note about European discovery? - Soerfm (talk) 14:40, 17 December 2012 (UTC)

Bismuth[edit]

Why Bismuth is in the unrecorded list when it's clear steated that it was discovered in 1753?OTAVIO1981 (talk) 15:32, 7 May 2013 (UTC)

I was wondering the same thing. I've moved it under recorded discoveries. Skydiver (talk) 18:42, 15 October 2013 (UTC)
Probably because of this. It was identified as a distinct element in 1753 but was known and used well before that. In that respect it is a bit like Zn. Double sharp (talk) 09:42, 14 September 2014 (UTC)

Requested move[edit]

The following discussion is an archived discussion of the proposal. Please do not modify it. Subsequent comments should be made in a new section on the talk page. No further edits should be made to this section.

The result of the proposal was moved. --BDD (talk) 20:01, 22 July 2013 (UTC)

Timeline of chemical elements discoveriesTimeline of chemical element discoveries – Per comment above, current title is not proper English. 86.146.106.166 (talk) 03:14, 14 July 2013 (UTC)

  • Support – This should be a speedy move, in my opinion. --Article editor (talk) 04:14, 14 July 2013 (UTC)
  • Support. I agree that this ought to be an uncontroversial speedy move. 168.12.253.66 (talk) 20:54, 14 July 2013 (UTC)
The above discussion is preserved as an archive of the proposal. Please do not modify it. Subsequent comments should be made in a new section on this talk page. No further edits should be made to this section.