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The International Year of Chemistry 2011 (IYC 2011) was a year-long commemorative event for the achievements of chemistry and its contributions to humankind. [1] The recognition for chemistry was made official by the United Nations in December 2008.
In September 2018, British physicist Jessica Wade created an article on the English Wikipedia about Clarice Phelps, [54] but this was deleted on February 11, 2019. [55] On April 12, The Washington Post published an op-ed [56] about, in part, the English-language Wikipedia's lack of coverage given to Phelps' contribution to the discovery of ...
Articles for deletion. 14 Dec 2024 – List of portmanteaus was AfDed by HalJor (t · c); see discussion (8 participants) 13 Dec 2024 – Business operations was AfDed by Fgnievinski (t · c); see discussion (3 participants)
The following section has been deleted without any explanation on 00:56, 22 October 2021 by someone at the following IP address 2601:40b:0:5935:e5de:5f7a:f112:7e37, in the edit here. I just retrieved the content of the section hereafter to preserve it and for possible discussion.
The National Standard Examination in Chemistry or NSEC is an examination in chemistry for higher secondary school students in India, usually conducted in the end of November. [1] The examination is organized by the Indian Association of Chemistry Teachers. Over 30,000 students, mainly from Standard 12, sit for this examination.
Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.
[25] c. 1530 Paracelsus develops the study of iatrochemistry, a subdiscipline of alchemy dedicated to extending life, thus being the roots of the modern pharmaceutical industry. It is also claimed that he is the first to use the word "chemistry". [8] 1597 Andreas Libavius publishes Alchemia, a prototype chemistry textbook. [26]